{"id":7911,"date":"2026-09-01T07:18:53","date_gmt":"2026-09-01T07:18:53","guid":{"rendered":"https:\/\/korea-transmission.com\/?post_type=product&#038;p=7911"},"modified":"2026-09-02T09:50:38","modified_gmt":"2026-09-02T09:50:38","slug":"rc-27-rotary-cutter-gearbox-replacement-for-omni-rc-27-gearbox","status":"publish","type":"product","link":"https:\/\/korea-transmission.com\/pt\/produto\/rc-27-rotary-cutter-gearbox-replacement-for-omni-rc-27-gearbox\/","title":{"rendered":"Caixa de engrenagens de substitui\u00e7\u00e3o para cortador rotativo RC-27 da Omni."},"content":{"rendered":"<p>A caixa de engrenagens RC-27 para cortadores rotativos, compat\u00edvel com a caixa de engrenagens Omni RC-27, \u00e9 uma caixa de engrenagens agr\u00edcola robusta, projetada especificamente para opera\u00e7\u00f5es exigentes no campo. Como substituta direta da unidade Omni RC-27, oferece excelente compatibilidade dimensional e funcional, tornando-se uma escolha confi\u00e1vel entre fornecedores de caixas de engrenagens para cortadores rotativos e equipes de servi\u00e7o OEM em todo o mundo. Projetada para acionar l\u00e2minas rotativas com precis\u00e3o e durabilidade, esta caixa de engrenagens \u00e9 amplamente utilizada em aplica\u00e7\u00f5es de corte de grama, tritura\u00e7\u00e3o de palha e limpeza de mato em uma ampla gama de implementos acionados por tratores. A unidade produz um torque de trabalho na faixa de 303 a 698 Nm (2.683 a 6.183 lb-in), suportado por engrenagens c\u00f4nicas e um sistema de veda\u00e7\u00e3o tripla com mola que impede a entrada de contaminantes do campo, mesmo nos ambientes mais severos. Seja operando a 540 RPM para tarefas de corte mais leves ou a 1.000 RPM para aplica\u00e7\u00f5es comerciais de alto rendimento, a RC-27 mant\u00e9m uma pot\u00eancia consistente e se adapta de forma confi\u00e1vel \u00e0s condi\u00e7\u00f5es vari\u00e1veis \u200b\u200bda cultura e do terreno.<\/p>\n<p>A caixa de engrenagens para aplica\u00e7\u00f5es de ro\u00e7adeiras rotativas deve converter a alta velocidade de rota\u00e7\u00e3o do eixo da tomada de for\u00e7a (TDF) do trator na sa\u00edda de baixa velocidade e alto torque exigida pelos conjuntos de corte. A RC-27 realiza isso por meio de um conjunto de engrenagens c\u00f4nicas de precis\u00e3o com rela\u00e7\u00f5es selecion\u00e1veis \u200b\u200bde 1:2,5 e 1:2,83, permitindo que os operadores ajustem o torque de sa\u00edda para corresponder \u00e0 densidade da vegeta\u00e7\u00e3o que est\u00e1 sendo processada. Essa capacidade de m\u00faltiplas rela\u00e7\u00f5es \u00e9 particularmente valiosa em opera\u00e7\u00f5es em terrenos mistos, como declives acentuados, \u00e1reas \u00famidas ou bordas de pastagens densamente arborizadas, onde as condi\u00e7\u00f5es de carga mudam rapidamente. Rolamentos de rolos c\u00f4nicos e de esferas de ranhura profunda garantem que o alinhamento do eixo seja mantido sob cargas radiais e axiais, enquanto o sistema de lubrifica\u00e7\u00e3o em banho de \u00f3leo de 20 oz (0,59 L) mant\u00e9m os componentes internos resfriados e protegidos durante ciclos de trabalho prolongados. Com 47 lbs. Com 21,3 kg, o RC-27 \u00e9 compacto o suficiente para ro\u00e7adeiras de acabamento e ro\u00e7adeiras rotativas que exigem uma caixa de engrenagens para servi\u00e7o de corte rotativo com pot\u00eancia nominal de trator de 20 HP a 90 HP, tornando-o uma das unidades mais vers\u00e1teis de sua classe.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7841 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox.webp\" alt=\"Caixa de engrenagens do cortador rotativo RC-27\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/p>\n<h2>Especifica\u00e7\u00f5es do produto<\/h2>\n<table style=\"height: 300px; width: 100%;\" border=\"1\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\">Modelo:<\/td>\n<td style=\"text-align: center;\">Caixa de c\u00e2mbio RC-27<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Torque:<\/td>\n<td style=\"text-align: center;\">2.683 \u2013 6.183 lb.-in.<br \/>\n(303 \u2013 698 Nm.)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Propor\u00e7\u00f5es:<\/td>\n<td style=\"text-align: center;\">1:2.5, 1:2.83<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Tipo de engrenagem:<\/td>\n<td style=\"text-align: center;\">Bisel<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Tipo de veda\u00e7\u00e3o:<\/td>\n<td style=\"text-align: center;\">Tripla camada de mola<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Tipo de rolamento:<\/td>\n<td style=\"text-align: center;\">Rolo c\u00f4nico, esfera de ranhura profunda<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Capacidade de \u00f3leo:<\/td>\n<td style=\"text-align: center;\">20 on\u00e7as.<br \/>\n(0,59 L)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Peso:<\/td>\n<td style=\"text-align: center;\">47 libras.<br \/>\n(21,3 kg)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Aplica\u00e7\u00f5es:<\/td>\n<td style=\"text-align: center;\">Cortadores de grama de acabamento<br \/>\nCortadores rotativos<br \/>\nCortadores rotativos<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Dimens\u00f5es da caixa de engrenagens da cortadora rotativa RC-27<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7909 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox-Dimensions.webp\" alt=\"Dimens\u00f5es da caixa de engrenagens do cortador rotativo\" width=\"1200\" height=\"600\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox-Dimensions.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox-Dimensions-980x490.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox-Dimensions-480x240.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" \/><\/p>\n<table style=\"width: 100%;\" contenteditable=\"true\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th style=\"text-align: center;\" rowspan=\"2\"><span style=\"font-weight: 500;\">Modelo<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">M\u00e1ximo<br \/>\nPeso<br \/>\nda Unidade<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">CL para Atrav\u00e9s<br \/>\nBon\u00e9<br \/>\nUM<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">CL para<br \/>\nFlange<br \/>\nB<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Flange para<br \/>\nProjeto piloto do Hub<br \/>\nC<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Projeto piloto do Hub<br \/>\nDi\u00e2metro<br \/>\nH<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Di\u00e2metro do flange<br \/>\nD1<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Furo do parafuso<br \/>\nPadr\u00e3o<br \/>\nE1<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Furos de montagem<br \/>\nF1<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Flange quadrada<br \/>\nTamanho<br \/>\nD2<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Furo do parafuso<br \/>\nPadr\u00e3o<br \/>\nE2<\/span><\/th>\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Furos de montagem<br \/>\nF2<\/span><\/th>\n<\/tr>\n<tr>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">Libra<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">kg<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">em<\/span><\/th>\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mil\u00edmetros<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: center;\">RC-20<\/td>\n<td style=\"text-align: center;\">34<\/td>\n<td style=\"text-align: center;\">15<\/td>\n<td style=\"text-align: center;\">3.0<\/td>\n<td style=\"text-align: center;\">76<\/td>\n<td style=\"text-align: center;\">6.5<\/td>\n<td style=\"text-align: center;\">165<\/td>\n<td style=\"text-align: center;\">2.40<\/td>\n<td style=\"text-align: center;\">61.0<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">6.18<\/td>\n<td style=\"text-align: center;\">157<\/td>\n<td style=\"text-align: center;\">6.8<\/td>\n<td style=\"text-align: center;\">171.5<\/td>\n<td style=\"text-align: center;\">(4) 0.67<\/td>\n<td style=\"text-align: center;\">(4) 17<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-27<\/td>\n<td style=\"text-align: center;\">47<\/td>\n<td style=\"text-align: center;\">21<\/td>\n<td style=\"text-align: center;\">3.5<\/td>\n<td style=\"text-align: center;\">88<\/td>\n<td style=\"text-align: center;\">6.4<\/td>\n<td style=\"text-align: center;\">164<\/td>\n<td style=\"text-align: center;\">2.40<\/td>\n<td style=\"text-align: center;\">61.0<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">6.18<\/td>\n<td style=\"text-align: center;\">157<\/td>\n<td style=\"text-align: center;\">6.8<\/td>\n<td style=\"text-align: center;\">171.5<\/td>\n<td style=\"text-align: center;\">(4) 0.67<\/td>\n<td style=\"text-align: center;\">(4) 17<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-30<\/td>\n<td style=\"text-align: center;\">51<\/td>\n<td style=\"text-align: center;\">23<\/td>\n<td style=\"text-align: center;\">3.9<\/td>\n<td style=\"text-align: center;\">100<\/td>\n<td style=\"text-align: center;\">6.4<\/td>\n<td style=\"text-align: center;\">164<\/td>\n<td style=\"text-align: center;\">3.30<\/td>\n<td style=\"text-align: center;\">84.0<\/td>\n<td style=\"text-align: center;\">2.5<\/td>\n<td style=\"text-align: center;\">63.5<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">6.89<\/td>\n<td style=\"text-align: center;\">175<\/td>\n<td style=\"text-align: center;\">6.8<\/td>\n<td style=\"text-align: center;\">171.5<\/td>\n<td style=\"text-align: center;\">(4) 0.67<\/td>\n<td style=\"text-align: center;\">(4) 17<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-51<\/td>\n<td style=\"text-align: center;\">56<\/td>\n<td style=\"text-align: center;\">25<\/td>\n<td style=\"text-align: center;\">3.7<\/td>\n<td style=\"text-align: center;\">94<\/td>\n<td style=\"text-align: center;\">6.4<\/td>\n<td style=\"text-align: center;\">164<\/td>\n<td style=\"text-align: center;\">3.50<\/td>\n<td style=\"text-align: center;\">88.9<\/td>\n<td style=\"text-align: center;\">2.5<\/td>\n<td style=\"text-align: center;\">63.5<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">6.89<\/td>\n<td style=\"text-align: center;\">175<\/td>\n<td style=\"text-align: center;\">6.8<\/td>\n<td style=\"text-align: center;\">171.5<\/td>\n<td style=\"text-align: center;\">(4) 0.67<\/td>\n<td style=\"text-align: center;\">(4) 17<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-61<\/td>\n<td style=\"text-align: center;\">81<\/td>\n<td style=\"text-align: center;\">37<\/td>\n<td style=\"text-align: center;\">4.2<\/td>\n<td style=\"text-align: center;\">107<\/td>\n<td style=\"text-align: center;\">7.2<\/td>\n<td style=\"text-align: center;\">183<\/td>\n<td style=\"text-align: center;\">3.50<\/td>\n<td style=\"text-align: center;\">88.9<\/td>\n<td style=\"text-align: center;\">2.5<\/td>\n<td style=\"text-align: center;\">63.5<\/td>\n<td style=\"text-align: center;\">9.5<\/td>\n<td style=\"text-align: center;\">242.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(4) 0.787<\/td>\n<td style=\"text-align: center;\">(4) 20<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-71<\/td>\n<td style=\"text-align: center;\">83<\/td>\n<td style=\"text-align: center;\">38<\/td>\n<td style=\"text-align: center;\">4.2<\/td>\n<td style=\"text-align: center;\">107<\/td>\n<td style=\"text-align: center;\">7.2<\/td>\n<td style=\"text-align: center;\">183<\/td>\n<td style=\"text-align: center;\">3.50<\/td>\n<td style=\"text-align: center;\">88.9<\/td>\n<td style=\"text-align: center;\">2.5<\/td>\n<td style=\"text-align: center;\">63.5<\/td>\n<td style=\"text-align: center;\">9.5<\/td>\n<td style=\"text-align: center;\">242.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(4) 0.787<\/td>\n<td style=\"text-align: center;\">(4) 20<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-81<\/td>\n<td style=\"text-align: center;\">98<\/td>\n<td style=\"text-align: center;\">45<\/td>\n<td style=\"text-align: center;\">4.6<\/td>\n<td style=\"text-align: center;\">116<\/td>\n<td style=\"text-align: center;\">11.0<\/td>\n<td style=\"text-align: center;\">279<\/td>\n<td style=\"text-align: center;\">3.50<\/td>\n<td style=\"text-align: center;\">88.9<\/td>\n<td style=\"text-align: center;\">2.5<\/td>\n<td style=\"text-align: center;\">63.5<\/td>\n<td style=\"text-align: center;\">9.6<\/td>\n<td style=\"text-align: center;\">245.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(4) 0.787<\/td>\n<td style=\"text-align: center;\">(4) 20<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-100<\/td>\n<td style=\"text-align: center;\">96<\/td>\n<td style=\"text-align: center;\">44<\/td>\n<td style=\"text-align: center;\">4.8<\/td>\n<td style=\"text-align: center;\">121<\/td>\n<td style=\"text-align: center;\">7.1<\/td>\n<td style=\"text-align: center;\">180<\/td>\n<td style=\"text-align: center;\">3.78<\/td>\n<td style=\"text-align: center;\">96.0<\/td>\n<td style=\"text-align: center;\">2.5<\/td>\n<td style=\"text-align: center;\">63.5<\/td>\n<td style=\"text-align: center;\">9.4<\/td>\n<td style=\"text-align: center;\">240.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(4) 0.787<\/td>\n<td style=\"text-align: center;\">(4) 20<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-130S<\/td>\n<td style=\"text-align: center;\">109<\/td>\n<td style=\"text-align: center;\">49<\/td>\n<td style=\"text-align: center;\">5.1<\/td>\n<td style=\"text-align: center;\">130<\/td>\n<td style=\"text-align: center;\">7.1<\/td>\n<td style=\"text-align: center;\">180<\/td>\n<td style=\"text-align: center;\">4.00<\/td>\n<td style=\"text-align: center;\">102.0<\/td>\n<td style=\"text-align: center;\">2.9<\/td>\n<td style=\"text-align: center;\">73.0<\/td>\n<td style=\"text-align: center;\">9.8<\/td>\n<td style=\"text-align: center;\">250.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(6) 0.807<\/td>\n<td style=\"text-align: center;\">(6) 21<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-130L<\/td>\n<td style=\"text-align: center;\">120<\/td>\n<td style=\"text-align: center;\">54<\/td>\n<td style=\"text-align: center;\">5.1<\/td>\n<td style=\"text-align: center;\">130<\/td>\n<td style=\"text-align: center;\">7.1<\/td>\n<td style=\"text-align: center;\">180<\/td>\n<td style=\"text-align: center;\">7.20<\/td>\n<td style=\"text-align: center;\">184.0<\/td>\n<td style=\"text-align: center;\">3.8<\/td>\n<td style=\"text-align: center;\">96.0<\/td>\n<td style=\"text-align: center;\">9.8<\/td>\n<td style=\"text-align: center;\">250.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(6) 0.807<\/td>\n<td style=\"text-align: center;\">(6) 21<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-145<\/td>\n<td style=\"text-align: center;\">110<\/td>\n<td style=\"text-align: center;\">50<\/td>\n<td style=\"text-align: center;\">5.6<\/td>\n<td style=\"text-align: center;\">142<\/td>\n<td style=\"text-align: center;\">8.9<\/td>\n<td style=\"text-align: center;\">225<\/td>\n<td style=\"text-align: center;\">8.05<\/td>\n<td style=\"text-align: center;\">204.5<\/td>\n<td style=\"text-align: center;\">3.8<\/td>\n<td style=\"text-align: center;\">96.0<\/td>\n<td style=\"text-align: center;\">10.2<\/td>\n<td style=\"text-align: center;\">260.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(6) 0.807<\/td>\n<td style=\"text-align: center;\">(6) 21<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-150L<\/td>\n<td style=\"text-align: center;\">145<\/td>\n<td style=\"text-align: center;\">66<\/td>\n<td style=\"text-align: center;\">5.1<\/td>\n<td style=\"text-align: center;\">130<\/td>\n<td style=\"text-align: center;\">11.0<\/td>\n<td style=\"text-align: center;\">280<\/td>\n<td style=\"text-align: center;\">7.20<\/td>\n<td style=\"text-align: center;\">184.0<\/td>\n<td style=\"text-align: center;\">3.8<\/td>\n<td style=\"text-align: center;\">96.0<\/td>\n<td style=\"text-align: center;\">9.8<\/td>\n<td style=\"text-align: center;\">250.0<\/td>\n<td style=\"text-align: center;\">8.0<\/td>\n<td style=\"text-align: center;\">203.2<\/td>\n<td style=\"text-align: center;\">(6) 0.807<\/td>\n<td style=\"text-align: center;\">(6) 21<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">RC-200<\/td>\n<td style=\"text-align: center;\">220<\/td>\n<td style=\"text-align: center;\">100<\/td>\n<td style=\"text-align: center;\">6.4<\/td>\n<td style=\"text-align: center;\">162<\/td>\n<td style=\"text-align: center;\">9.5<\/td>\n<td style=\"text-align: center;\">241<\/td>\n<td style=\"text-align: center;\">8.00<\/td>\n<td style=\"text-align: center;\">203.0<\/td>\n<td style=\"text-align: center;\">5.3<\/td>\n<td style=\"text-align: center;\">135.0<\/td>\n<td style=\"text-align: center;\">11.8<\/td>\n<td style=\"text-align: center;\">300.0<\/td>\n<td style=\"text-align: center;\">10<\/td>\n<td style=\"text-align: center;\">254.0<\/td>\n<td style=\"text-align: center;\">(6) 0.905<\/td>\n<td style=\"text-align: center;\">(6) 23<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<td style=\"text-align: center;\">–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Principais caracter\u00edsticas da caixa de engrenagens do cortador rotativo RC-27<\/h2>\n<p>1. Adapta\u00e7\u00e3o do acionamento da tomada de for\u00e7a (PTO)<br \/>\nA caixa de engrenagens RC-27 conecta-se diretamente ao eixo da tomada de for\u00e7a (TDF) do trator e suporta opera\u00e7\u00e3o tanto em rota\u00e7\u00f5es padr\u00e3o de 540 RPM quanto em alta velocidade de 1.000 RPM, sem a necessidade de adaptadores secund\u00e1rios. Os acoplamentos estriados de troca r\u00e1pida permitem que a unidade seja instalada ou removida em minutos, reduzindo o tempo de inatividade durante a troca de implementos. Essa ampla compatibilidade torna a RC-27 uma caixa de engrenagens confi\u00e1vel para configura\u00e7\u00f5es de ro\u00e7adeiras rotativas em tratores na faixa de 20 HP a 90 HP, desde modelos utilit\u00e1rios compactos at\u00e9 m\u00e1quinas agr\u00edcolas de grande porte para culturas em linha.<\/p>\n<p>2. Adaptabilidade ao terreno<br \/>\nA RC-27 foi projetada para funcionar com plataformas de corte flutuantes, onde a cabe\u00e7a de corte acompanha automaticamente o contorno do terreno. Quando a plataforma sobe ou desce sobre pedras, sulcos ou canais de drenagem, a geometria de montagem da caixa de engrenagens acomoda esse movimento sem transmitir for\u00e7as de flex\u00e3o destrutivas ao eixo de entrada ou ao conjunto do rolamento de sa\u00edda. Isso \u00e9 especialmente cr\u00edtico em cen\u00e1rios de alto impacto, como pastagens inclinadas e campos de restolho irregulares, onde as caixas de engrenagens de posi\u00e7\u00e3o fixa sofrem falhas por fadiga r\u00e1pidas nas flanges de montagem.<\/p>\n<p>3. Interface de l\u00e2mina modular<br \/>\nO eixo de sa\u00edda da RC-27 \u00e9 usinado para aceitar uma variedade de configura\u00e7\u00f5es de ferramentas de corte, incluindo l\u00e2minas oscilantes tipo Y, conjuntos de l\u00e2minas de martelo e suportes de discos de corte. Com a simples troca do conjunto de l\u00e2minas, os operadores podem alternar entre tarefas de corte, tritura\u00e7\u00e3o de palha e cobertura vegetal com a mesma m\u00e1quina, sem precisar trocar a caixa de engrenagens. Essa abordagem modular reduz o custo total do implemento e maximiza a utiliza\u00e7\u00e3o da m\u00e1quina em diferentes opera\u00e7\u00f5es sazonais no campo e em diversos tipos de culturas.<\/p>\n<p>4. Facilidade de manuten\u00e7\u00e3o em campo<br \/>\nO bocal de enchimento e o buj\u00e3o de drenagem do \u00f3leo da caixa de engrenagens da ro\u00e7adeira rotativa est\u00e3o posicionados de forma a facilitar o acesso sem a necessidade de remover a caixa de engrenagens do implemento. Os operadores podem verificar o n\u00edvel de \u00f3leo da caixa de engrenagens da ro\u00e7adeira rotativa, completar o n\u00edvel ou realizar uma troca completa de \u00f3leo diretamente no campo, utilizando ferramentas manuais comuns. Este design reduz drasticamente o tempo de servi\u00e7o durante as \u00e9pocas de maior atividade de corte. A capacidade de \u00f3leo de 0,59 L (20 oz) foi projetada para um ciclo r\u00e1pido de drenagem e reabastecimento, incentivando os operadores a manter os intervalos de lubrifica\u00e7\u00e3o adequados para prolongar a vida \u00fatil da caixa de engrenagens.<\/p>\n<p>5. Durabilidade e Prote\u00e7\u00e3o Ambiental<br \/>\nA carca\u00e7a da caixa de engrenagens \u00e9 constru\u00edda em ferro fundido d\u00factil de alta resist\u00eancia, proporcionando resist\u00eancia superior aos impactos gerados quando as l\u00e2minas atingem rochas incrustadas, tocos de ra\u00edzes ou sulcos de solo compactado. Todas as superf\u00edcies externas recebem um revestimento de primer anticorrosivo que resiste \u00e0 corros\u00e3o causada pela exposi\u00e7\u00e3o prolongada \u00e0 lama, \u00e1gua parada, res\u00edduos de fertilizantes e seiva de plantas. O sistema de veda\u00e7\u00e3o tripla com mola oferece prote\u00e7\u00e3o em m\u00faltiplos est\u00e1gios contra a entrada de poeira, areia e umidade, mantendo a integridade do \u00f3leo interno por milhares de horas de opera\u00e7\u00e3o em condi\u00e7\u00f5es de campo \u00famidas e abrasivas.<\/p>\n<p>6. Seguran\u00e7a e prote\u00e7\u00e3o contra sobrecarga<br \/>\nO projeto RC-27 \u00e9 compat\u00edvel com sistemas de prote\u00e7\u00e3o contra sobrecarga, incluindo acoplamentos de parafuso de cisalhamento e conjuntos de transmiss\u00e3o com embreagem deslizante instalados a montante no eixo de transmiss\u00e3o da tomada de for\u00e7a (TDF). Quando uma l\u00e2mina atinge um objeto im\u00f3vel e o torque ultrapassa a capacidade nominal, o dispositivo de sobrecarga desengata a transmiss\u00e3o antes que a carga de choque atinja as engrenagens c\u00f4nicas ou os conjuntos de rolamentos dentro da caixa de engrenagens. Esse mecanismo de prote\u00e7\u00e3o \u00e9 essencial para preservar as pe\u00e7as da caixa de engrenagens da ro\u00e7adeira em ambientes com grande quantidade de detritos, como campos com pedras enterradas, fragmentos de tubos de irriga\u00e7\u00e3o ou tocos de madeira dura.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7841 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox.webp\" alt=\"Caixa de engrenagens do cortador rotativo RC-27\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/p>\n<div style=\"width: 1080px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-7911-1\" width=\"1080\" height=\"608\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox.mp4?_=1\" \/><a href=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox.mp4\">https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox.mp4<\/a><\/video><\/div>\n<h2>Working Principle<\/h2>\n<p>A caixa de engrenagens da ro\u00e7adeira rotativa \u00e9 o n\u00facleo mec\u00e2nico de qualquer implemento de corte acionado por trator. Sua fun\u00e7\u00e3o \u00e9 interceptar a energia rotacional de alta velocidade produzida pelo eixo da tomada de for\u00e7a (TDF) do trator e convert\u00ea-la na transmiss\u00e3o de baixa velocidade e alto torque necess\u00e1ria para o conjunto de corte abaixo. Sem uma caixa de engrenagens agr\u00edcola funcionando corretamente no centro dessa transmiss\u00e3o, o suporte da l\u00e2mina giraria muito r\u00e1pido e desintegraria o material cortado em fragmentos dif\u00edceis de manusear, ou travaria sob carga ao entrar em contato com vegeta\u00e7\u00e3o densa.<\/p>\n<p>No RC-27, a pot\u00eancia entra pelo eixo de entrada, que possui estrias para aceitar a transmiss\u00e3o da tomada de for\u00e7a (TDF) padr\u00e3o, com rota\u00e7\u00f5es de 540 RPM ou 1.000 RPM, dependendo da configura\u00e7\u00e3o do trator e da sele\u00e7\u00e3o do operador. O eixo de entrada transmite essa energia rotacional para um conjunto de engrenagens c\u00f4nicas de a\u00e7o-liga temperado. As engrenagens c\u00f4nicas s\u00e3o o tipo de transmiss\u00e3o preferido para ro\u00e7adeiras rotativas porque redirecionam o eixo de rota\u00e7\u00e3o em 90 graus: o eixo de entrada corre horizontalmente, alinhado com o trator, enquanto o eixo de sa\u00edda corre verticalmente para baixo, acionando o eixo da l\u00e2mina. Essa transfer\u00eancia de pot\u00eancia em \u00e2ngulo reto \u00e9 fundamental para o formato compacto e de baixo perfil de todos os implementos de ro\u00e7adeiras rotativas, desde os modelos de 20 HP para corte de grama at\u00e9 os trituradores de arbustos comerciais de 100 HP.<\/p>\n<p>O RC-27 oferece duas rela\u00e7\u00f5es de transmiss\u00e3o selecion\u00e1veis: 1:2,5 e 1:2,83. Na rela\u00e7\u00e3o 1:2,5, o eixo de sa\u00edda gira a 40% da velocidade de entrada, aumentando o torque proporcionalmente. Na rela\u00e7\u00e3o 1:2,83, a redu\u00e7\u00e3o de velocidade \u00e9 ligeiramente maior, produzindo um torque mais elevado no cubo da l\u00e2mina. Operadores que utilizam implementos mais leves em tratores de 25 HP a 45 HP podem preferir a rela\u00e7\u00e3o 1:2,5 devido \u00e0 maior velocidade da ponta da l\u00e2mina, enquanto aqueles que operam plataformas de corte mais pesadas, de 60 HP a 90 HP, em vegeta\u00e7\u00e3o densa, normalmente selecionam a rela\u00e7\u00e3o 1:2,83 para obter a for\u00e7a de corte m\u00e1xima. A faixa de torque varia de 2.683 a 6.183 lb.-in. (303 a 698 Nm), abrangendo uma faixa de trabalho pr\u00e1tica que se adapta a ro\u00e7adeiras de acabamento, ro\u00e7adeiras rotativas e ro\u00e7adeiras de topo em todas as aplica\u00e7\u00f5es agr\u00edcolas padr\u00e3o.<\/p>\n<p>Dentro da carca\u00e7a, rolamentos de rolos c\u00f4nicos e rolamentos de esferas de ranhura profunda suportam os eixos de entrada e sa\u00edda contra as cargas radiais geradas pela tra\u00e7\u00e3o da correia e pelo desequil\u00edbrio das l\u00e2minas, e contra as cargas axiais produzidas pelo engrenamento das engrenagens c\u00f4nicas. A pr\u00e9-carga adequada dos rolamentos \u00e9 crucial: folga axial excessiva permite que o contato entre os dentes da engrenagem se desvie do ponto de contato projetado, acelerando o desgaste e gerando calor; pr\u00e9-carga insuficiente causa fadiga prematura dos rolamentos. O sistema de lubrifica\u00e7\u00e3o por banho de \u00f3leo, abastecido com o n\u00edvel correto de \u00f3leo da caixa de engrenagens da ro\u00e7adeira rotativa de 20 oz (0,59 L), garante que todas as superf\u00edcies dos dentes da engrenagem e dos rolamentos permane\u00e7am continuamente lubrificadas durante a opera\u00e7\u00e3o. As veda\u00e7\u00f5es triplas com mola em cada ponto de sa\u00edda do eixo mant\u00eam esse ambiente interno de \u00f3leo protegido contra poeira, \u00e1gua e detritos da colheita, t\u00edpicos de trabalhos em diversos tipos de terreno. Juntos, esses sistemas permitem que a RC-27 suporte a regula\u00e7\u00e3o de m\u00faltiplas velocidades em diferentes densidades de cultivo e terrenos, incluindo declives acentuados e \u00e1reas \u00famidas, fornecendo pot\u00eancia est\u00e1vel independentemente da varia\u00e7\u00e3o da carga de corte entre as linhas.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7863 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-2.webp\" alt=\"Caixa de engrenagens do cortador rotativo\" width=\"1200\" height=\"900\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-2.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-2-980x735.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-2-480x360.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" \/><\/p>\n<h2>Aplica\u00e7\u00f5es da caixa de engrenagens do cortador de grama rotativo RC-27<\/h2>\n<div>\n<h3>Corte de grama e tritura\u00e7\u00e3o de palha<\/h3>\n<p>A aplica\u00e7\u00e3o mais comum da caixa de engrenagens de substitui\u00e7\u00e3o RC-27 para implementos de corte rotativo. A transmiss\u00e3o por engrenagem c\u00f4nica gira o porta-l\u00e2minas na velocidade correta para cortar com precis\u00e3o talos de grama e reduzir a palha de culturas de milho, trigo e sorgo em fragmentos adequados para incorpora\u00e7\u00e3o no campo ou enfardamento. A rela\u00e7\u00e3o selecion\u00e1vel permite ao operador ajustar a velocidade da ponta para obter uma cobertura fina ou um corte mais grosso, dependendo das necessidades de uso final.<\/p>\n<\/div>\n<div>\n<h3>Limpeza de arbustos e silvas<\/h3>\n<p>A limpeza de vegeta\u00e7\u00e3o rasteira ao longo de cercas, margens de valas e bordas de bosques exige alto torque e prote\u00e7\u00e3o confi\u00e1vel contra sobrecarga. A RC-27 oferece at\u00e9 6.183 lb-in de torque para cortar talos lenhosos de at\u00e9 2 a 3 polegadas de di\u00e2metro, enquanto a carca\u00e7a da caixa de engrenagens absorve os impactos repetidos do contato da l\u00e2mina com ra\u00edzes e tocos. Essa capacidade a torna a primeira escolha para projetos de manejo de vegeta\u00e7\u00e3o rasteira e recupera\u00e7\u00e3o de terras.<\/p>\n<\/div>\n<div>\n<h3>Tratamento da palha e prepara\u00e7\u00e3o do solo<\/h3>\n<p>Ap\u00f3s a colheita de gr\u00e3os, os restolhos de arroz, trigo e soja devem ser triturados e incorporados ao solo antes do pr\u00f3ximo ciclo de plantio. Uma ro\u00e7adeira rotativa equipada com o RC-27 e l\u00e2minas de disco pode reduzir as fileiras de restolho em p\u00e9 a velocidades de trabalho de 4 a 6 km\/h, processando o material em part\u00edculas suficientemente finas para uma decomposi\u00e7\u00e3o r\u00e1pida. O torque constante em toda a faixa de rela\u00e7\u00f5es da caixa de engrenagens da ro\u00e7adeira rotativa evita o travamento quando a ro\u00e7adeira transita entre zonas de restolho esparso e denso.<\/p>\n<\/div>\n<div>\n<h3>Gest\u00e3o de \u00e1reas de pomares e vinhedos<\/h3>\n<p>Os decks de corte de perfil baixo, combinados com o RC-27, podem operar entre fileiras de videiras ou \u00e1rvores em pomares e vinhedos onde a altura livre \u00e9 limitada. As dimens\u00f5es compactas da caixa de engrenagens (3,5 pol. de centro a centro da tampa, 6,4 pol. de centro a centro do flange) permitem que esses implementos se encaixem sob galhos baixos, mantendo uma dist\u00e2ncia adequada da l\u00e2mina ao solo. O controle de ervas daninhas entre culturas permanentes \u00e9 uma tarefa de precis\u00e3o que exige um n\u00edvel constante de \u00f3leo na caixa de engrenagens da ro\u00e7adeira rotativa e veda\u00e7\u00f5es bem conservadas para evitar contamina\u00e7\u00e3o em ambientes de produ\u00e7\u00e3o de alimentos.<\/p>\n<\/div>\n<div>\n<h3>Manuten\u00e7\u00e3o de acostamentos e faixas de dom\u00ednio<\/h3>\n<p>Empresas de manuten\u00e7\u00e3o de rodovias e munic\u00edpios que operam ro\u00e7adeiras equipadas com caixas de engrenagens rotativas de 40 a 75 HP em acostamentos, faixas de dom\u00ednio de servi\u00e7os p\u00fablicos e valas de drenagem confiam na RC-27 por sua durabilidade em ciclos de trabalho cont\u00ednuos. Turnos de trabalho de 6 a 8 horas por dia exigem lubrifica\u00e7\u00e3o interna robusta e veda\u00e7\u00e3o confi\u00e1vel. O projeto com banho de \u00f3leo e as veda\u00e7\u00f5es labiais com mola garantem que a caixa de engrenagens funcione sem superaquecimento, mesmo durante opera\u00e7\u00f5es prolongadas em terrenos irregulares.<\/p>\n<\/div>\n<div>\n<h3>Elimina\u00e7\u00e3o de culturas de cobertura e aduba\u00e7\u00e3o verde<\/h3>\n<p>Sistemas de cultivo org\u00e2nico e de plantio direto frequentemente eliminam mecanicamente as culturas de cobertura antes do plantio das culturas comerciais. Um cortador rotativo equipado com a caixa de engrenagens agr\u00edcola RC-27 pode rolar e cortar as culturas de cobertura em alturas controladas, deixando uma camada de cobertura morta na superf\u00edcie que suprime ervas daninhas e ret\u00e9m a umidade do solo. O ajuste da velocidade da l\u00e2mina por meio da sele\u00e7\u00e3o da rela\u00e7\u00e3o permite que operadores de tratores compactos de 25 HP at\u00e9 m\u00e1quinas de m\u00e9dio porte de 60 HP adaptem a agressividade da l\u00e2mina \u00e0 densidade da biomassa da cultura de cobertura que est\u00e1 sendo processada.<\/p>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7897 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-2.webp\" alt=\"Aplica\u00e7\u00f5es da caixa de engrenagens do cortador rotativo\" width=\"1200\" height=\"820\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-2.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-2-980x670.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-2-480x328.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" \/><\/p>\n<h2>Componentes da caixa de engrenagens do cortador rotativo RC-27<\/h2>\n<p>1. Carca\u00e7a da caixa de c\u00e2mbio<br \/>\nA carca\u00e7a externa \u00e9 fundida com precis\u00e3o em ferro fundido d\u00factil, um material escolhido especificamente por sua capacidade de absorver impactos sem fraturar sob choques repentinos. A carca\u00e7a envolve e alinha todos os componentes internos, mant\u00e9m o \u00f3leo sob press\u00e3o e fornece a interface de montagem estrutural para a estrutura da plataforma de corte atrav\u00e9s do flange quadrado (6,18 pol. \/ 157 mm). Todas as faces dos ressaltos s\u00e3o usinadas com toler\u00e2ncias rigorosas para garantir o encaixe perfeito com as tampas de extremidade e as veda\u00e7\u00f5es do eixo.<\/p>\n<p>2. Engrenagens C\u00f4nicas<br \/>\nOs principais elementos de transmiss\u00e3o de pot\u00eancia da caixa de engrenagens agr\u00edcola. Os blanks de a\u00e7o-liga forjados s\u00e3o usinados com precis\u00e3o, tratados termicamente para endurecer superficialmente os flancos dos dentes e retificados para obter um perfil de dente suave e consistente. Esse processo produz engrenagens capazes de transmitir at\u00e9 698 Nm de torque, gerando o m\u00ednimo de calor e ru\u00eddo. O arranjo c\u00f4nico de 90 graus redireciona a rota\u00e7\u00e3o do eixo da tomada de for\u00e7a (TDF) para baixo, em dire\u00e7\u00e3o ao eixo da l\u00e2mina, tornando a transfer\u00eancia de pot\u00eancia em \u00e2ngulo reto compacta e eficiente.<\/p>\n<p>3. Eixo de entrada<br \/>\nUsinado em a\u00e7o liga cementado, o eixo de entrada recebe a transmiss\u00e3o rotacional da tomada de for\u00e7a (TDF) atrav\u00e9s de um acoplamento estriado padr\u00e3o. O eixo \u00e9 retificado com toler\u00e2ncias de di\u00e2metro precisas para garantir o encaixe correto dos rolamentos e a profundidade de engrenamento adequada. A geometria estriada est\u00e1 em conformidade com os perfis padr\u00e3o da ind\u00fastria, compat\u00edveis com configura\u00e7\u00f5es de TDF de 1-3\/8 pol. e 1-3\/4 pol. em tratores na faixa de pot\u00eancia de 20 HP a 100 HP, permitindo ampla compatibilidade com tratores de diferentes marcas sem a necessidade de adaptadores personalizados.<\/p>\n<p>4. Eixo de sa\u00edda<br \/>\nPosicionado verticalmente abaixo do conjunto de engrenagens c\u00f4nicas, o eixo de sa\u00edda transmite o torque convertido diretamente para o cubo da l\u00e2mina ou conjunto de corte. Este eixo deve suportar n\u00e3o apenas cargas de tor\u00e7\u00e3o cont\u00ednuas, mas tamb\u00e9m os momentos de flex\u00e3o repetitivos e os impactos axiais gerados cada vez que uma l\u00e2mina atinge detritos. Ele \u00e9 fabricado com o mesmo a\u00e7o-liga cementado do eixo de entrada, com aten\u00e7\u00e3o adicional ao acabamento superficial nas zonas de contato da veda\u00e7\u00e3o e do rolamento para evitar o desgaste acelerado da veda\u00e7\u00e3o.<\/p>\n<p>5. Rolamentos<br \/>\nA RC-27 utiliza uma combina\u00e7\u00e3o de rolamentos de rolos c\u00f4nicos e rolamentos de esferas de ranhura profunda, selecionados para suportar os perfis de carga radial e axial mistos gerados pela opera\u00e7\u00e3o da engrenagem c\u00f4nica. Os rolos c\u00f4nicos no eixo de entrada gerenciam o alto empuxo axial produzido pelo engrenamento da engrenagem, enquanto os rolamentos de esferas de ranhura profunda no eixo de sa\u00edda suportam as cargas radiais provenientes do desequil\u00edbrio das l\u00e2minas. A qualidade dos rolamentos controla diretamente o ru\u00eddo da caixa de engrenagens da cortadora rotativa, a gera\u00e7\u00e3o de calor e a vida \u00fatil geral entre as revis\u00f5es.<\/p>\n<p>6. Retentores de \u00f3leo de l\u00e1bio triplo<br \/>\nTr\u00eas retentores labiais conc\u00eantricos com molas helicoidais integradas s\u00e3o instalados ao redor de cada ponto de sa\u00edda do eixo do RC-27. O l\u00e1bio mais interno ret\u00e9m o \u00f3leo da engrenagem; o l\u00e1bio intermedi\u00e1rio atua como uma barreira secund\u00e1ria; o l\u00e1bio externo impede a entrada de contaminantes abrasivos, incluindo poeira, palha e lama. A falha dos retentores de \u00f3leo est\u00e1 entre as causas mais comuns de necessidade de reparos prematuros em caixas de engrenagens de cortadores rotativos, tornando o projeto de triplo l\u00e1bio um investimento crucial para a confiabilidade a longo prazo. A carga da mola mant\u00e9m a for\u00e7a de veda\u00e7\u00e3o eficaz mesmo com o desgaste gradual do material do l\u00e1bio durante o uso.<\/p>\n<p>7. Sistema de Lubrifica\u00e7\u00e3o a \u00d3leo<br \/>\nO RC-27 utiliza um sistema de lubrifica\u00e7\u00e3o por banho de \u00f3leo, no qual a parte inferior do conjunto de engrenagens c\u00f4nicas fica parcialmente submersa em \u00f3leo. \u00c0 medida que as engrenagens giram, elas transportam o \u00f3leo para cima atrav\u00e9s da zona de contato, espalhando-o sobre os mancais e as superf\u00edcies do eixo acima. Manter a lubrifica\u00e7\u00e3o correta \u00e9 essencial para evitar esse problema. <a href=\"https:\/\/korea-transmission.com\/pt\/rotary-cutter-gearbox\/\"><strong>caixa de engrenagens da cortadora rotativa<\/strong><\/a> O n\u00edvel de \u00f3leo de 20 oz (0,59 L) \u00e9 essencial: o n\u00edvel insuficiente priva os rolamentos superiores de lubrifica\u00e7\u00e3o; o n\u00edvel excessivo causa perdas por agita\u00e7\u00e3o e aumento da temperatura de opera\u00e7\u00e3o. O \u00f3leo para engrenagens GL-5 EP 80W-90 \u00e9 o \u00f3leo recomendado para caixas de engrenagens de cortadoras rotativas na maioria das condi\u00e7\u00f5es de opera\u00e7\u00e3o.<\/p>\n<p>8. Tampas de Precis\u00e3o e Buj\u00e3o de Al\u00edvio de Press\u00e3o<br \/>\nAs tampas de ferro fundido fecham ambos os furos do eixo na carca\u00e7a, fornecendo as superf\u00edcies de fixa\u00e7\u00e3o contra as quais os retentores de \u00f3leo atuam e funcionando como elementos estruturais secund\u00e1rios que enrijecem a carca\u00e7a contra deforma\u00e7\u00f5es. Um buj\u00e3o de al\u00edvio de press\u00e3o na carca\u00e7a da caixa de engrenagens permite que o ar que se expande dentro da cavidade de \u00f3leo selada durante a opera\u00e7\u00e3o seja expelido com seguran\u00e7a, evitando o ac\u00famulo de press\u00e3o que, de outra forma, for\u00e7aria o \u00f3leo da engrenagem a passar pelos retentores do eixo. Este buj\u00e3o tamb\u00e9m serve como ponto de refer\u00eancia para a verifica\u00e7\u00e3o do n\u00edvel de \u00f3leo da caixa de engrenagens da cortadora rotativa em configura\u00e7\u00f5es compat\u00edveis.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7873 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-1.webp\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-1.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-1-480x480.webp 480w\" alt=\"Pe\u00e7as da caixa de engrenagens do cortador rotativo\" width=\"800\" height=\"800\" \/><\/p>\n<h2>Processo de fabrica\u00e7\u00e3o<\/h2>\n<p>1. Qualifica\u00e7\u00e3o da mat\u00e9ria-prima<br \/>\nTodos os materiais de a\u00e7o e ferro recebidos s\u00e3o submetidos a inspe\u00e7\u00e3o de controle de qualidade, incluindo an\u00e1lise espectrogr\u00e1fica da composi\u00e7\u00e3o qu\u00edmica e verifica\u00e7\u00e3o da resist\u00eancia \u00e0 tra\u00e7\u00e3o. As pe\u00e7as fundidas de ferro fundido nodular para a carca\u00e7a da caixa de engrenagens devem atender aos padr\u00f5es m\u00ednimos de propriedades mec\u00e2nicas antes de entrarem na linha de produ\u00e7\u00e3o. As barras de a\u00e7o-liga para eixos e engrenagens brutas s\u00e3o certificadas de acordo com faixas de dureza espec\u00edficas para garantir uma resposta consistente ao tratamento t\u00e9rmico. Os materiais que n\u00e3o atendem aos padr\u00f5es de entrada s\u00e3o colocados em quarentena e devolvidos aos fornecedores antes que possam comprometer a qualidade do produto final.<\/p>\n<p>2. Fundi\u00e7\u00e3o e Usinagem Bruta da Carca\u00e7a<br \/>\nA carca\u00e7a de ferro fundido d\u00factil \u00e9 fundida em areia at\u00e9 atingir uma forma pr\u00f3xima \u00e0 final e deixada em repouso para normaliza\u00e7\u00e3o antes do in\u00edcio da usinagem. Em seguida, centros de usinagem CNC realizam a remo\u00e7\u00e3o grosseira de material em todas as superf\u00edcies de contato: a face do flange, os furos dos mancais, os furos de sa\u00edda do eixo e as localiza\u00e7\u00f5es das portas de \u00f3leo. Dispositivos de fixa\u00e7\u00e3o s\u00e3o posicionados com precis\u00e3o para garantir que todas as opera\u00e7\u00f5es de usinagem compartilhem uma refer\u00eancia de datum comum, o que garante que o alinhamento final do furo do mancal esteja dentro das toler\u00e2ncias de projeto e que ambos os eixos se interceptem no \u00e2ngulo correto de 90 graus necess\u00e1rio para o engrenamento adequado da engrenagem c\u00f4nica.<\/p>\n<p>3. Forjamento e fresagem de engrenagens<br \/>\nOs blanks para engrenagens c\u00f4nicas s\u00e3o forjados em a\u00e7o-liga para estabelecer o padr\u00e3o de fluxo de fibras correto, visando m\u00e1xima resist\u00eancia da raiz do dente. Em seguida, as pe\u00e7as forjadas s\u00e3o normalizadas e torneadas grosseiramente antes de serem inseridas em m\u00e1quinas de fresagem de engrenagens CNC, que cortam o perfil do dente c\u00f4nico de acordo com a geometria projetada. A precis\u00e3o do perfil do dente \u00e9 verificada em centros de medi\u00e7\u00e3o de engrenagens utilizando sondas CMM. Qualquer blank de engrenagem que apresente valores fora da toler\u00e2ncia especificada para o perfil involuto ou para a espessura do dente \u00e9 rejeitado antes de prosseguir para o tratamento t\u00e9rmico.<\/p>\n<p>4. Tratamento t\u00e9rmico e endurecimento superficial<br \/>\nOs blanks de engrenagens e eixos passam por tratamento t\u00e9rmico de cementa\u00e7\u00e3o em fornos de atmosfera controlada para atingir uma camada endurecida de 0,8 a 1,2 mm de profundidade em todas as superf\u00edcies funcionais. A cementa\u00e7\u00e3o produz uma camada externa resistente ao desgaste, mantendo um n\u00facleo tenaz e d\u00factil que resiste \u00e0 fratura sob cargas de impacto. Ap\u00f3s a cementa\u00e7\u00e3o, as pe\u00e7as s\u00e3o temperadas e revenidas para atingir a dureza superficial desejada. Cada lote \u00e9 acompanhado por corpos de prova que s\u00e3o submetidos a ensaios destrutivos para verificar a profundidade da camada endurecida e a dureza do n\u00facleo antes da libera\u00e7\u00e3o do lote para usinagem de acabamento.<\/p>\n<p>5. Usinagem de acabamento e retifica\u00e7\u00e3o do eixo<br \/>\nAp\u00f3s o tratamento t\u00e9rmico, os eixos s\u00e3o retificados cilindricamente com precis\u00e3o para atingir di\u00e2metros de munh\u00f5es de mancais dentro da classe de toler\u00e2ncia H6\/H5. As superf\u00edcies de contato da veda\u00e7\u00e3o recebem um acabamento adicional para atingir a rugosidade superficial Ra 0,4 especificada para o funcionamento eficaz da veda\u00e7\u00e3o labial. Os furos dos mancais da carca\u00e7a s\u00e3o usinados em centros de usinagem CNC utilizando a mesma refer\u00eancia de datum da usinagem de desbaste. As toler\u00e2ncias finais do di\u00e2metro do furo e os valores de circularidade s\u00e3o verificados com equipamento de medi\u00e7\u00e3o pneum\u00e1tica antes da autoriza\u00e7\u00e3o da montagem.<\/p>\n<p>6. Montagem e ajuste de pr\u00e9-carga<br \/>\nT\u00e9cnicos de montagem treinados instalam rolamentos, engrenagens, eixos e veda\u00e7\u00f5es em uma sequ\u00eancia controlada. A pr\u00e9-carga dos rolamentos \u00e9 definida medindo-se o torque de rota\u00e7\u00e3o durante a montagem e ajustando-se os conjuntos de cal\u00e7os para atingir a faixa de torque de arrasto especificada no projeto. A pr\u00e9-carga correta \u00e9 fundamental para alcan\u00e7ar o padr\u00e3o de contato dos dentes da engrenagem e a vida \u00fatil dos rolamentos desejados. Ap\u00f3s a montagem, cada caixa de engrenagens \u00e9 preenchida com uma pequena quantidade de \u00f3leo para caixas de engrenagens de cortadores rotativos e testada em um banco de ensaio sem carga para verificar a rota\u00e7\u00e3o suave, o n\u00edvel correto de \u00f3leo e a aus\u00eancia de ru\u00eddos ou vibra\u00e7\u00f5es anormais antes de prosseguir para a inspe\u00e7\u00e3o final.<\/p>\n<p>7. Tratamento de Superf\u00edcie e Inspe\u00e7\u00e3o Final<br \/>\nOs conjuntos de caixas de engrenagens finalizados s\u00e3o jateados para remover toda a ferrugem superficial e, em seguida, recebem uma camada de primer anticorrosivo de \u00f3xido de ferro vermelho, aplicada em todas as superf\u00edcies externas. A inspe\u00e7\u00e3o final inclui uma verifica\u00e7\u00e3o dimensional de todas as superf\u00edcies de montagem cr\u00edticas em compara\u00e7\u00e3o com o desenho de refer\u00eancia, um teste de vazamento utilizando ar comprimido imerso em \u00e1gua e uma verifica\u00e7\u00e3o visual de todas as instala\u00e7\u00f5es de veda\u00e7\u00e3o e marcas de torque dos parafusos. As unidades que atendem a todos os crit\u00e9rios de inspe\u00e7\u00e3o final t\u00eam o \u00f3leo de teste drenado, s\u00e3o tampadas, etiquetadas com os c\u00f3digos de rastreabilidade da produ\u00e7\u00e3o e embaladas para envio.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7884 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Features-1.webp\" alt=\"Caracter\u00edsticas da caixa de engrenagens do cortador rotativo\" width=\"1600\" height=\"960\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Features-1.webp 1600w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Features-1-1280x768.webp 1280w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Features-1-980x588.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Features-1-480x288.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1600px, 100vw\" \/><\/p>\n<h2>Etapas de instala\u00e7\u00e3o<\/h2>\n<div>\n<h3>1. Desligue a energia e prepare a \u00e1rea de trabalho.<\/h3>\n<p>Antes de iniciar qualquer trabalho, desligue completamente o motor do trator, retire a chave de igni\u00e7\u00e3o e acione o freio de estacionamento. Desconecte o eixo de transmiss\u00e3o da tomada de for\u00e7a (TDF) do eixo da TDF do trator e prenda-o longe do implemento para evitar acionamento acidental. Trabalhe em uma superf\u00edcie plana e firme, com o implemento abaixado at\u00e9 o ch\u00e3o e apoiado em cavaletes, se necess\u00e1rio. Deixe a caixa de engrenagens antiga esfriar completamente se tiver sido usada recentemente, pois o \u00f3leo da engrenagem e as superf\u00edcies da carca\u00e7a estar\u00e3o quentes.<\/p>\n<\/div>\n<div>\n<h3>2. Drene o \u00f3leo velho da caixa de velocidades.<\/h3>\n<p>Localize o buj\u00e3o de drenagem na caixa de engrenagens existente e posicione um recipiente adequado abaixo dele antes de solt\u00e1-lo. Deixe o \u00f3leo da caixa de engrenagens da cortadora rotativa escorrer completamente para dentro do recipiente. Inspecione o \u00f3leo drenado em busca de part\u00edculas met\u00e1licas, descolora\u00e7\u00e3o leitosa indicando entrada de \u00e1gua ou odor de queimado indicando superaquecimento. A condi\u00e7\u00e3o do \u00f3leo usado fornece informa\u00e7\u00f5es \u00fateis para o diagn\u00f3stico da causa da falha da caixa de engrenagens original. Descarte o \u00f3leo usado de acordo com as normas ambientais locais.<\/p>\n<\/div>\n<div>\n<h3>3. Remova a caixa de engrenagens antiga do conv\u00e9s.<\/h3>\n<p>Apoie a caixa de engrenagens antiga com uma m\u00e3o ou com uma cinta de eleva\u00e7\u00e3o adequada enquanto afrouxa os quatro parafusos de fixa\u00e7\u00e3o do flange em padr\u00e3o cruzado para liberar a press\u00e3o uniformemente. Observe a posi\u00e7\u00e3o de qualquer cal\u00e7o entre o flange e a placa de base, pois esses cal\u00e7os afetam a altura da l\u00e2mina e devem ser reproduzidos durante a instala\u00e7\u00e3o da RC-27. Depois de remover os parafusos, deslize a caixa de engrenagens para fora da conex\u00e3o do cubo da l\u00e2mina e abaixe-a com cuidado. Limpe a superf\u00edcie de montagem na placa de base, removendo res\u00edduos da junta antiga, corros\u00e3o e detritos, antes de instalar a nova unidade.<\/p>\n<\/div>\n<div>\n<h3>4. Posicione e fixe o RC-27 com parafusos.<\/h3>\n<p>Alinhe a flange quadrada do RC-27 (6,18 pol. \/ 157 mm) com os furos de montagem da placa de fixa\u00e7\u00e3o, reinstalando qualquer material de cal\u00e7o original sob a flange. Rosqueie os quatro parafusos de montagem manualmente antes de aplic\u00e1-los em padr\u00e3o cruzado, de acordo com o torque especificado pelo fabricante do implemento, normalmente de 65 a 80 Nm para parafusos M12 de grau 8.8. Confirme se o eixo de sa\u00edda se encaixa perfeitamente na estria do cubo da l\u00e2mina ou no adaptador antes do aperto final. Aplique trava-rosca nas roscas dos parafusos, se especificado pelo fabricante da plataforma de corte.<\/p>\n<\/div>\n<div>\n<h3>5. Complete com \u00f3leo de engrenagem at\u00e9 o n\u00edvel correto.<\/h3>\n<p>Remova o buj\u00e3o de enchimento e adicione \u00f3leo de engrenagem GL-5 EP 80W-90 novo (o \u00f3leo recomendado para a caixa de engrenagens da cortadora rotativa na maioria das condi\u00e7\u00f5es) at\u00e9 que o \u00f3leo comece a pingar pelo orif\u00edcio de enchimento, indicando que atingiu o n\u00edvel correto de \u00f3leo na caixa de engrenagens da cortadora rotativa. A capacidade de \u00f3leo da RC-27 \u00e9 de 20 oz (0,59 L). N\u00e3o encha demais, pois o excesso de \u00f3leo gera calor adicional devido \u00e0 agita\u00e7\u00e3o e pode ser for\u00e7ado a passar pela veda\u00e7\u00e3o do eixo de sa\u00edda durante a opera\u00e7\u00e3o. Recoloque o buj\u00e3o de enchimento e aperte-o com o torque especificado. Limpe qualquer \u00f3leo derramado da parte externa da carca\u00e7a.<\/p>\n<\/div>\n<div>\n<h3>6. Reconecte o eixo de acionamento da tomada de for\u00e7a e fa\u00e7a a verifica\u00e7\u00e3o de rodagem.<\/h3>\n<p>Reconecte o eixo de transmiss\u00e3o da tomada de for\u00e7a (TDF) ao engate da TDF do trator e verifique se a prote\u00e7\u00e3o de seguran\u00e7a gira livremente e est\u00e1 devidamente fixada em ambas as extremidades. Ligue o trator, engate a TDF com o acelerador em baixa rota\u00e7\u00e3o (aproximadamente 60% da velocidade nominal) e deixe a caixa de engrenagens funcionar sem carga por 2 a 3 minutos. Preste aten\u00e7\u00e3o a ru\u00eddos anormais, verifique se h\u00e1 vazamentos de \u00f3leo ao redor do flange e das veda\u00e7\u00f5es do eixo e confirme se o \u00e2ngulo de opera\u00e7\u00e3o do eixo de transmiss\u00e3o n\u00e3o excede 15 graus. Ap\u00f3s o per\u00edodo de amaciamento, desligue o trator, inspecione novamente todos os fixadores e a caixa de engrenagens estar\u00e1 pronta para opera\u00e7\u00e3o no campo.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7864 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-3.webp\" alt=\"Caixa de engrenagens do cortador rotativo\" width=\"1200\" height=\"900\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-3.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-3-980x735.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-3-480x360.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" \/><\/p>\n<h2>Caixa de engrenagens para cortador rotativo vs. caixa de engrenagens para ro\u00e7adeira de martelos<\/h2>\n<div>\n<div>\n<h3>Caixa de engrenagens do cortador rotativo<\/h3>\n<p>Uma caixa de engrenagens para ro\u00e7adeira rotativa, como a RC-27, fica localizada na parte superior da plataforma de corte e conecta-se diretamente do eixo da tomada de for\u00e7a (TDF) do trator \u00e0 barra de suporte das l\u00e2minas por meio de um eixo de sa\u00edda vertical. A pot\u00eancia flui em linha reta: do eixo da TDF para o eixo de entrada, das engrenagens c\u00f4nicas para o eixo de sa\u00edda e do eixo de sa\u00edda para o cubo da l\u00e2mina. N\u00e3o h\u00e1 correias, polias ou conjuntos de embreagem entre a sa\u00edda da caixa de engrenagens e as l\u00e2minas. Esse acoplamento direto significa que cada libra-p\u00e9 de torque gerado pelo trator est\u00e1 imediatamente dispon\u00edvel na borda de corte, tornando a caixa de engrenagens para aplica\u00e7\u00f5es com ro\u00e7adeira rotativa ideal para limpeza de vegeta\u00e7\u00e3o densa de alto impacto, cortes de aproxima\u00e7\u00e3o para tritura\u00e7\u00e3o de tocos espessos e processamento de biomassa densa, onde a manuten\u00e7\u00e3o da velocidade da ponta da l\u00e2mina sob carga repentina \u00e9 crucial.<\/p>\n<p>As pesadas l\u00e2minas oscilantes montadas em um cortador rotativo s\u00e3o projetadas para desviar e retornar \u00e0 posi\u00e7\u00e3o original ap\u00f3s colis\u00f5es com objetos im\u00f3veis, como rochas incrustadas. Quando uma l\u00e2mina atinge uma rocha e gira em torno do parafuso de fixa\u00e7\u00e3o, o impacto \u00e9 transmitido pelo eixo de sa\u00edda at\u00e9 a carca\u00e7a da caixa de engrenagens. Por isso, a constru\u00e7\u00e3o em ferro fundido nodular e os robustos rolamentos de rolos c\u00f4nicos s\u00e3o essenciais nesse projeto. Operadores que utilizam cortadores rotativos com caixas de engrenagens de 40 HP at\u00e9 aplica\u00e7\u00f5es comerciais de 100 HP para gerenciamento de vegeta\u00e7\u00e3o rasteira confiam nessa arquitetura de acionamento direto devido \u00e0 sua capacidade de fornecer torque bruto e \u00e0 simplicidade de manuten\u00e7\u00e3o.<\/p>\n<\/div>\n<div>\n<h3>Caixa de engrenagens do cortador de grama de martelos<\/h3>\n<p>A caixa de engrenagens de uma ro\u00e7adeira de martelos \u00e9 montada na lateral ou na parte superior da plataforma de corte e redireciona a pot\u00eancia da tomada de for\u00e7a (TDF) n\u00e3o diretamente para baixo, mas lateralmente, para um sistema de polias e correias. O eixo de sa\u00edda da caixa de engrenagens aciona uma ou mais polias, e correias em V ou correias planas transmitem essa energia rotacional para o tubo do rotor horizontal, que suporta os martelos ou l\u00e2minas em Y. Esse sistema de transmiss\u00e3o por correia introduz uma liga\u00e7\u00e3o mec\u00e2nica flex\u00edvel entre a caixa de engrenagens e o rotor de corte. Quando um martelo atinge uma pedra, raiz ou outro objeto im\u00f3vel, as correias deslizam momentaneamente em vez de transmitir toda a carga de impacto diretamente para os componentes internos da caixa de engrenagens.<\/p>\n<p>Essa a\u00e7\u00e3o de deslizamento e recupera\u00e7\u00e3o reduz significativamente a for\u00e7a de impacto m\u00e1xima nos rolamentos e na carca\u00e7a da caixa de engrenagens, raz\u00e3o pela qual as caixas de engrenagens das ro\u00e7adeiras de martelo podem ser constru\u00eddas com especifica\u00e7\u00f5es mais leves do que as unidades equivalentes de ro\u00e7adeiras rotativas. A desvantagem \u00e9 que as correias adicionam complexidade: elas se esticam com o tempo e exigem retensionamento peri\u00f3dico, desgastam-se e precisam ser substitu\u00eddas como item de manuten\u00e7\u00e3o, al\u00e9m de reduzirem a efici\u00eancia mec\u00e2nica geral do sistema de transmiss\u00e3o em compara\u00e7\u00e3o com um sistema de engrenagens diretas. As ro\u00e7adeiras de martelo tamb\u00e9m tendem a produzir um corte mais fino e uniforme do que as ro\u00e7adeiras rotativas, tornando-as a escolha preferida para trabalhos de acabamento em pomares, campos esportivos e limpeza de acostamentos de estradas, onde a qualidade do corte \u00e9 t\u00e3o importante quanto a capacidade de corte.<\/p>\n<\/div>\n<\/div>\n<div>\n<table style=\"height: 400px; width: 100%;\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<th style=\"text-align: center;\">Recurso<\/th>\n<th style=\"text-align: center;\">Caixa de engrenagens do cortador rotativo<\/th>\n<th style=\"text-align: center;\">Caixa de engrenagens do cortador de grama de martelos<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: center;\">Tipo de acionamento<\/td>\n<td style=\"text-align: center;\">Engrenagem c\u00f4nica direta, sem correias<\/td>\n<td style=\"text-align: center;\">Indireto por meio de correia e polia<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Dire\u00e7\u00e3o do eixo de sa\u00edda<\/td>\n<td style=\"text-align: center;\">Vertical (para baixo at\u00e9 o cubo da p\u00e1)<\/td>\n<td style=\"text-align: center;\">Horizontal (para a polia do rotor)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Capacidade de lidar com cargas de choque<\/td>\n<td style=\"text-align: center;\">Direto; absorvido pela carca\u00e7a e pelos rolamentos.<\/td>\n<td style=\"text-align: center;\">O deslizamento da correia proporciona amortecimento.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Efici\u00eancia de condu\u00e7\u00e3o<\/td>\n<td style=\"text-align: center;\">Superior (95 a 98%)<\/td>\n<td style=\"text-align: center;\">Inferior (85 a 92% com correias)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Melhor aplicativo<\/td>\n<td style=\"text-align: center;\">Vegeta\u00e7\u00e3o densa, palha grossa, desmatamento de pasto<\/td>\n<td style=\"text-align: center;\">Acabamento fino, pomares, gramados esportivos<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Itens de manuten\u00e7\u00e3o<\/td>\n<td style=\"text-align: center;\">\u00d3leo, retentores, rolamentos<\/td>\n<td style=\"text-align: center;\">\u00d3leo, retentores, rolamentos, correias, polias<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Qualidade de corte<\/td>\n<td style=\"text-align: center;\">Picado mais grosso, alto volume<\/td>\n<td style=\"text-align: center;\">Corte mais fino e uniforme<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Adequa\u00e7\u00e3o da gama HP<\/td>\n<td style=\"text-align: center;\">Tratores de 20 HP a mais de 100 HP<\/td>\n<td style=\"text-align: center;\">Normalmente de 25 HP a 90 HP<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div>\n<p>Se o seu trabalho principal envolve a limpeza de vegeta\u00e7\u00e3o densa, o manejo de pastagens, o processamento de res\u00edduos de colheita ou a opera\u00e7\u00e3o em terrenos rochosos e acidentados, a caixa de engrenagens para ro\u00e7adeira rotativa RC-27 \u00e9 a escolha certa. Sua arquitetura de engrenagem direta fornece o torque m\u00e1ximo dispon\u00edvel \u00e0 l\u00e2mina em todos os momentos, sua carca\u00e7a de ferro fundido d\u00factil absorve impactos que danificariam caixas de engrenagens mais leves, e o sistema de lubrifica\u00e7\u00e3o simples por banho de \u00f3leo facilita a manuten\u00e7\u00e3o em campo. Se o seu trabalho for predominantemente o acabamento de grama fina, o manejo do solo em pomares ou a limpeza de acostamentos, onde a uniformidade do corte \u00e9 prioridade e os impactos s\u00e3o moderados, uma caixa de engrenagens para ro\u00e7adeira de martelos, com sua transmiss\u00e3o por correia, pode ser mais adequada. A CMN Transmission fabrica ambos os tipos e pode aconselhar sobre a especifica\u00e7\u00e3o correta para a sua combina\u00e7\u00e3o espec\u00edfica de implemento e trator.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7874 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-2.webp\" alt=\"Pe\u00e7as da caixa de engrenagens do cortador rotativo\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-2.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-2-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/p>\n<h2>Por que escolher as caixas de engrenagens para cortadores rotativos da CMN Transmission?<\/h2>\n<p>A Korea CMN Transmission Co., Ltd. foi fundada em 2000 e est\u00e1 sediada em Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Coreia do Sul. Com mais de 100 funcion\u00e1rios dedicados exclusivamente \u00e0 pesquisa e desenvolvimento, fabrica\u00e7\u00e3o, controle de qualidade e suporte p\u00f3s-venda de caixas de engrenagens agr\u00edcolas, a CMN cresceu de uma fornecedora coreana para um nome reconhecido globalmente entre os fabricantes de caixas de engrenagens para ro\u00e7adeiras. A rede de exporta\u00e7\u00e3o da empresa abrange atualmente mais de 60 pa\u00edses, incluindo Estados Unidos, Canad\u00e1, M\u00e9xico, Brasil, Argentina, Fran\u00e7a, Alemanha, It\u00e1lia, Espanha, Reino Unido, R\u00fassia, China, \u00cdndia, Tail\u00e2ndia, Vietn\u00e3, Turquia, Austr\u00e1lia e Nova Zel\u00e2ndia. A capacidade de produ\u00e7\u00e3o anual ultrapassa 500.000 unidades de caixas de engrenagens, o que permite \u00e0 CMN manter um estoque consistente mesmo durante os per\u00edodos de pico de demanda sazonal, quando as janelas de servi\u00e7o para m\u00e1quinas agr\u00edcolas s\u00e3o mais curtas.<\/p>\n<p>A gama de produtos da CMN abrange toda a extens\u00e3o da transmiss\u00e3o de pot\u00eancia agr\u00edcola moderna: caixas de engrenagens para ro\u00e7adeiras rotativas, caixas de engrenagens para cultivadores rotativos, caixas de engrenagens para misturadores de ra\u00e7\u00e3o, caixas de engrenagens para segadoras rotativas, caixas de engrenagens para distribuidores de fertilizantes, caixas de engrenagens para ro\u00e7adeiras de martelo, caixas de engrenagens para perfuradores de solo, caixas de engrenagens para enfardadeiras redondas, caixas de engrenagens para enfardadeiras quadradas, caixas de engrenagens para segadoras de discos, caixas de engrenagens para sistemas de irriga\u00e7\u00e3o por piv\u00f4 central, caixas de engrenagens para acionamento hidr\u00e1ulico, caixas de engrenagens para ensiladeiras, caixas de engrenagens para pulverizadores de pomares, caixas de engrenagens para ancinhos rotativos, caixas de engrenagens para colheitadeiras, caixas de engrenagens para armazenamento e transporte de gr\u00e3os, caixas de engrenagens para plataformas de milho, caixas de engrenagens para barras de corte e caixas de engrenagens para sistemas de alimenta\u00e7\u00e3o de aves. O cat\u00e1logo completo abrange quase mil especifica\u00e7\u00f5es, incluindo solu\u00e7\u00f5es personalizadas para parceiros OEM que necessitam de caixas de engrenagens adaptadas a arquiteturas de implementos n\u00e3o padronizados.<\/p>\n<p>Na CMN, a qualidade n\u00e3o \u00e9 apenas uma promessa de marketing, mas sim um sistema comprovado. As certifica\u00e7\u00f5es CE de produto, ISO 9001 de gest\u00e3o da qualidade, Sistema de Gest\u00e3o Ambiental e de Sa\u00fade e Seguran\u00e7a Ocupacional submetem os processos da CMN a auditorias independentes de terceiros. Essas certifica\u00e7\u00f5es s\u00e3o importantes na pr\u00e1tica para compradores internacionais: a marca\u00e7\u00e3o CE simplifica a conformidade com as normas de importa\u00e7\u00e3o para os mercados europeus, e a certifica\u00e7\u00e3o ISO 9001 \u00e9 cada vez mais exigida como crit\u00e9rio de qualifica\u00e7\u00e3o de fornecedores por grandes fabricantes de equipamentos originais (OEMs) e distribuidores de m\u00e1quinas agr\u00edcolas em todo o mundo.<\/p>\n<p>O que realmente diferencia a CMN Transmission de fornecedores de caixas de engrenagens para ro\u00e7adeiras rotativas de menor custo \u00e9 a combina\u00e7\u00e3o de projeto de engenharia, materiais qualificados, processos de fabrica\u00e7\u00e3o controlados e suporte t\u00e9cnico que se estende aos compradores mesmo ap\u00f3s a venda. A equipe t\u00e9cnica da CMN oferece an\u00e1lise de aplica\u00e7\u00e3o antes da compra, orienta\u00e7\u00e3o de instala\u00e7\u00e3o e an\u00e1lise de falhas p\u00f3s-venda para solicita\u00e7\u00f5es de garantia e solu\u00e7\u00e3o de problemas em frotas. Para distribuidores, parceiros OEM e agricultores que dependem do fornecimento confi\u00e1vel de caixas de engrenagens agr\u00edcolas para manter seus equipamentos em funcionamento durante as safras, a CMN Transmission tem demonstrado consistentemente a combina\u00e7\u00e3o de qualidade de produto, confiabilidade na entrega e suporte t\u00e9cnico abrangente que torna um relacionamento de fornecimento de longo prazo valioso.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7915 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/0_Rotary-Cutter-Gearbox-Manufacturers.webp\" alt=\"Fabricantes de caixas de engrenagens para cortadores rotativos\" width=\"1200\" height=\"820\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/0_Rotary-Cutter-Gearbox-Manufacturers.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/0_Rotary-Cutter-Gearbox-Manufacturers-980x670.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/0_Rotary-Cutter-Gearbox-Manufacturers-480x328.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" \/><\/p>\n<h2>Perguntas frequentes<\/h2>\n<p><strong>P: A caixa de engrenagens CMN RC-27 \u00e9 compat\u00edvel com a caixa de engrenagens Omni RC-27?<\/strong><br \/>\nR: Sim. A caixa de engrenagens CMN RC-27 \u00e9 fabricada com as mesmas especifica\u00e7\u00f5es dimensionais da caixa de engrenagens original Omni RC-27. O tamanho do flange quadrado (6,18 pol. \/ 157 mm), o padr\u00e3o de furos dos parafusos (6,8 pol. \/ 171,5 mm), a quantidade de furos de montagem (4 x 0,67 pol. \/ 17 mm), a dist\u00e2ncia entre o centro do centro e o flange (6,4 pol. \/ 164 mm) e a geometria da estria do eixo de sa\u00edda s\u00e3o todos produzidos para corresponder aos desenhos da Omni RC-27. Nenhuma modifica\u00e7\u00e3o na plataforma de corte, placa adaptadora ou trabalho personalizado no eixo de transmiss\u00e3o \u00e9 necess\u00e1rio para uma substitui\u00e7\u00e3o direta. Recomendamos confirmar o modelo espec\u00edfico da sua plataforma de corte na tabela de dimens\u00f5es publicada antes de fazer o pedido para garantir a compatibilidade.<\/p>\n<p><strong>P: Qual o tipo e a quantidade de \u00f3leo para a caixa de engrenagens da cortadora rotativa RC-27?<\/strong><br \/>\nA: O RC-27 requer \u00f3leo de engrenagem GL-5 EP 80W-90 na maioria das condi\u00e7\u00f5es de opera\u00e7\u00e3o. Em regi\u00f5es com temperaturas ambientes constantes abaixo de -15 graus Celsius, recomenda-se um \u00f3leo GL-5 75W-90 totalmente sint\u00e9tico para facilitar a rota\u00e7\u00e3o em partidas a frio e uma lubrifica\u00e7\u00e3o mais r\u00e1pida dos rolamentos na inicializa\u00e7\u00e3o. A capacidade total de \u00f3leo da caixa de engrenagens da cortadora rotativa \u00e9 de 20 oz (0,59 L). Sempre complete o n\u00edvel de \u00f3leo pelo orif\u00edcio de enchimento designado at\u00e9 que o \u00f3leo comece a vazar, indicando que o n\u00edvel correto de \u00f3leo da caixa de engrenagens da cortadora rotativa foi atingido. Nunca utilize \u00f3leo de motor automotivo, \u00f3leo hidr\u00e1ulico ou graxa como substitutos para \u00f3leo de engrenagem nesta aplica\u00e7\u00e3o.<\/p>\n<p><strong>P: Para qual pot\u00eancia (HP) de trator esta caixa de engrenagens \u00e9 classificada? Ela funciona para aplica\u00e7\u00f5es com cortadores rotativos de 40 HP, 60 HP, 75 HP ou 90 HP?<\/strong><br \/>\nA: A caixa de engrenagens RC-27 abrange uma faixa operacional pr\u00e1tica de aproximadamente 20 HP na extremidade inferior at\u00e9 90 HP na extremidade superior, dependendo do projeto do implemento de corte e da carga real no campo. \u00c9 comumente usada em aplica\u00e7\u00f5es com caixas de engrenagens de cortadores rotativos de 25 HP e 40 HP em tratores compactos e de m\u00e9dio porte, e \u00e9 igualmente adequada para configura\u00e7\u00f5es com caixas de engrenagens de cortadores rotativos de 60 HP e 75 HP em m\u00e1quinas agr\u00edcolas maiores. Para requisitos de caixas de engrenagens de cortadores rotativos de 100 HP, recomendamos considerar os modelos RC-30 ou RC-51 com classifica\u00e7\u00f5es de torque mais altas. Entre em contato com nossa equipe t\u00e9cnica informando a pot\u00eancia do seu trator e o modelo da plataforma de corte para confirma\u00e7\u00e3o espec\u00edfica.<\/p>\n<p><strong>P: Qual \u00e9 a rela\u00e7\u00e3o de transmiss\u00e3o da caixa de engrenagens da fresa rotativa RC-27 e como fa\u00e7o para escolher entre 1:2,5 e 1:2,83?<\/strong><br \/>\nA: As op\u00e7\u00f5es de rela\u00e7\u00e3o de transmiss\u00e3o da ro\u00e7adeira rotativa RC-27 s\u00e3o 1:2,5 e 1:2,83. Ambas as rela\u00e7\u00f5es reduzem a velocidade de entrada da TDP (Tomada de For\u00e7a) para produzir maior torque no cubo da l\u00e2mina. A rela\u00e7\u00e3o 1:2,5 produz uma velocidade de ponta da l\u00e2mina mais r\u00e1pida, mais adequada para materiais mais leves, como grama e res\u00edduos de culturas finas, onde a alta velocidade de corte melhora a qualidade e a produtividade. A rela\u00e7\u00e3o 1:2,83 produz uma velocidade de l\u00e2mina mais baixa, mas com maior torque (at\u00e9 698 Nm \/ 6.183 lb.-in.), sendo a escolha preferida para vegeta\u00e7\u00e3o densa, palha grossa e culturas de alta biomassa. Por favor, especifique a rela\u00e7\u00e3o desejada no momento do pedido, pois ambas est\u00e3o dispon\u00edveis, mas n\u00e3o podem ser alteradas em campo ap\u00f3s a montagem.<\/p>\n<p><strong>P: Como sei se a caixa de engrenagens da minha cortadora rotativa precisa de reparo, reconstru\u00e7\u00e3o ou substitui\u00e7\u00e3o completa?<\/strong><br \/>\nA: O reparo ou a reconstru\u00e7\u00e3o da caixa de engrenagens da cortadora rotativa \u00e9 apropriado quando a carca\u00e7a em si n\u00e3o est\u00e1 danificada e a falha se limita a veda\u00e7\u00f5es desgastadas, rolamentos com defeito ou um dente de engrenagem quebrado. Nesses casos, a aquisi\u00e7\u00e3o das pe\u00e7as corretas para a caixa de engrenagens da cortadora rotativa e a realiza\u00e7\u00e3o de uma reconstru\u00e7\u00e3o interna normalmente custam de 40% a 60% do pre\u00e7o de uma caixa de engrenagens nova. A substitui\u00e7\u00e3o completa \u00e9 recomendada quando a carca\u00e7a est\u00e1 rachada ou gravemente danificada, quando v\u00e1rios componentes internos falharam simultaneamente ou quando o custo da m\u00e3o de obra para a reconstru\u00e7\u00e3o excede o valor da unidade reparada. A CMN Transmission fornece pe\u00e7as individuais para a caixa de engrenagens da cortadora rotativa RC-27, incluindo kits de veda\u00e7\u00e3o, conjuntos de rolamentos e conjuntos de engrenagens para dar suporte a opera\u00e7\u00f5es de reparo e reconstru\u00e7\u00e3o.<\/p>\n<p><strong>P: Onde posso encontrar a caixa de engrenagens da cortadora rotativa RC-27 \u00e0 venda e qual \u00e9 o prazo de entrega t\u00edpico?<\/strong><br \/>\nA: A caixa de engrenagens para cortador rotativo CMN RC-27 est\u00e1 dispon\u00edvel para venda diretamente em nosso site e por meio de distribuidores autorizados nos Estados Unidos, Canad\u00e1, Austr\u00e1lia, Europa e outros importantes mercados agr\u00edcolas. As unidades padr\u00e3o em estoque s\u00e3o normalmente enviadas dentro de 3 a 5 dias \u00fateis ap\u00f3s a confirma\u00e7\u00e3o do pedido. A entrega internacional para a maioria dos destinos leva de 8 a 18 dias \u00fateis, dependendo dos procedimentos de desembara\u00e7o aduaneiro no pa\u00eds de destino. Consultas de distribuidores e pedidos OEM em grande quantidade s\u00e3o tratados separadamente, com prazos de entrega e pre\u00e7os negociados. Entre em contato com nossa equipe de vendas para obter uma estimativa de frete para sua localidade espec\u00edfica.<\/p>\n<p><strong>P: O RC-27 est\u00e1 dispon\u00edvel atrav\u00e9s dos canais de fornecimento de tratores com caixa de engrenagens para cortadores rotativos?<\/strong><br \/>\nA: A CMN Transmission opera principalmente como fornecedora direta e atrav\u00e9s de uma rede de distribuidores, em vez de trabalhar com grandes redes de varejo. Embora algumas lojas independentes de suprimentos agr\u00edcolas em regi\u00f5es agr\u00edcolas importantes tenham em estoque produtos de transmiss\u00e3o CMN, encomendar diretamente da CMN ou atrav\u00e9s de nossos distribuidores autorizados garante que voc\u00ea receba as especifica\u00e7\u00f5es de produ\u00e7\u00e3o mais recentes, suporte t\u00e9cnico completo e cobertura de garantia. Se a sua loja de suprimentos agr\u00edcolas ou cooperativa agr\u00edcola local n\u00e3o tiver a CMN RC-27 em estoque, podemos enviar diretamente para o seu endere\u00e7o ou para um terminal de cargas local para retirada. Entre em contato conosco para obter indica\u00e7\u00f5es de distribuidores em sua regi\u00e3o.<\/p>\n<p><strong>P: Com que frequ\u00eancia devo trocar o \u00f3leo da caixa de engrenagens da cortadora rotativa e o que acontece se eu pular alguma troca de \u00f3leo?<\/strong><br \/>\nA: O intervalo recomendado para a troca de \u00f3leo da caixa de engrenagens da ro\u00e7adeira rotativa RC-27 \u00e9 a cada 100 horas de opera\u00e7\u00e3o ou uma vez por temporada, o que ocorrer primeiro. A primeira troca de \u00f3leo em uma caixa de engrenagens nova ou recondicionada deve ser realizada ap\u00f3s 50 horas de uso para remover quaisquer part\u00edculas met\u00e1licas resultantes do per\u00edodo de amaciamento. A omiss\u00e3o de trocas de \u00f3leo permite que o \u00f3leo oxidado e os detritos met\u00e1licos acumulados atuem como um composto abrasivo, acelerando o desgaste dos dentes da engrenagem e da superf\u00edcie dos rolamentos. Na pr\u00e1tica, um operador que utiliza a m\u00e1quina por 200 horas por temporada sem trocar o \u00f3leo normalmente observar\u00e1 o surgimento de ru\u00eddos nos rolamentos dentro de 2 a 3 temporadas, enquanto uma unidade com manuten\u00e7\u00e3o adequada pode ultrapassar 5.000 horas de vida \u00fatil antes de necessitar de reparos internos.<\/p>\n<p><strong>P: Uma caixa de engrenagens RC-27 pode ser usada em diferentes marcas e modelos de cortadores rotativos?<\/strong><br \/>\nR: A RC-27 \u00e9 compat\u00edvel com qualquer implemento de corte rotativo originalmente projetado com base na especifica\u00e7\u00e3o da caixa de engrenagens Omni RC-27. Como a Omni Gear estabeleceu a RC-27 como um padr\u00e3o da ind\u00fastria amplamente adotado, diversas marcas de cortadores, incluindo Bush Hog, Rhino, Land Pride, Woods e outras, utilizam configura\u00e7\u00f5es de montagem compat\u00edveis com a RC-27 em v\u00e1rias gera\u00e7\u00f5es de produtos. A compatibilidade depende da correspond\u00eancia das dimens\u00f5es do flange, do padr\u00e3o de fura\u00e7\u00e3o e da geometria do eixo de sa\u00edda, e n\u00e3o da marca impressa na plataforma de corte. Utilize nossas tabelas de dimens\u00f5es publicadas para verificar as especifica\u00e7\u00f5es de montagem reais do seu implemento em rela\u00e7\u00e3o aos dados do flange RC-27 antes de fazer o pedido, especialmente para implementos mais antigos, nos quais os registros de fornecimento da caixa de engrenagens original podem n\u00e3o estar dispon\u00edveis.<\/p>\n<p><strong>P: Quais certifica\u00e7\u00f5es a CMN Transmission possui para esta caixa de c\u00e2mbio agr\u00edcola?<\/strong><br \/>\nA: A CMN Transmission possui certifica\u00e7\u00e3o CE, que confirma a conformidade com as diretivas europeias aplic\u00e1veis \u200b\u200bde seguran\u00e7a de m\u00e1quinas, certifica\u00e7\u00e3o do sistema de gest\u00e3o da qualidade ISO 9001, certifica\u00e7\u00e3o do sistema de gest\u00e3o ambiental e certifica\u00e7\u00e3o de sa\u00fade e seguran\u00e7a ocupacional. Essas certifica\u00e7\u00f5es demonstram que tanto o projeto do produto quanto o processo de fabrica\u00e7\u00e3o atendem aos padr\u00f5es internacionalmente reconhecidos. A marca\u00e7\u00e3o CE \u00e9 particularmente relevante para clientes que importam para os Estados-Membros da UE e para o Reino Unido, pois simplifica o desembara\u00e7o aduaneiro e confirma que o produto atende aos requisitos de seguran\u00e7a da diretiva de m\u00e1quinas da UE. C\u00f3pias da documenta\u00e7\u00e3o podem ser fornecidas mediante solicita\u00e7\u00e3o para fins de conformidade de importa\u00e7\u00e3o ou qualifica\u00e7\u00e3o de contratantes.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7914 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-27-Rotary-Cutter-Gearbox-2.webp\" alt=\"Caixa de engrenagens do cortador rotativo RC-27\" width=\"1000\" height=\"1000\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-27-Rotary-Cutter-Gearbox-2.webp 1000w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-27-Rotary-Cutter-Gearbox-2-980x980.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-27-Rotary-Cutter-Gearbox-2-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" \/><\/p>\n<h2>Avalia\u00e7\u00f5es de clientes<\/h2>\n<p data-path-to-node=\"1\"><b data-path-to-node=\"1\" data-index-in-node=\"0\">James Whitfield, pecuarista, Estados Unidos<\/b><br \/>\n\u201cEstou usando esta caixa de engrenagens RC-27 em uma ro\u00e7adeira rotativa Bush Hog de 4,5 metros acoplada a um trator de 75 HP h\u00e1 duas temporadas completas. A unidade Omni original finalmente parou de funcionar ap\u00f3s anos de servi\u00e7o e esta substituta da CMN encaixou perfeitamente, sem nenhuma modifica\u00e7\u00e3o. Mesmo padr\u00e3o de parafusos, mesmas dimens\u00f5es do flange, mesma estria do eixo de sa\u00edda. Eu estava c\u00e9tico em comprar uma pe\u00e7a de reposi\u00e7\u00e3o pela internet, mas a qualidade de constru\u00e7\u00e3o \u00e9 realmente impressionante, a carca\u00e7a \u00e9 s\u00f3lida, as veda\u00e7\u00f5es s\u00e3o perfeitas e funciona mais fria do que a antiga funcionava no \u00faltimo ano de uso. Troquei o \u00f3leo com 100 horas de uso, como recomendado, e estava limpo. Estou muito satisfeito com esta compra.\u201d<\/p>\n<p data-path-to-node=\"2\"><b data-path-to-node=\"2\" data-index-in-node=\"0\">Craig Donnelly, Fazenda de Ovelhas, Austr\u00e1lia<\/b><br \/>\n\u201cUtilizamos v\u00e1rias ro\u00e7adeiras rotativas em nossa propriedade de cria\u00e7\u00e3o de ovelhas e as falhas na caixa de engrenagens no meio do ver\u00e3o s\u00e3o um problema s\u00e9rio para n\u00f3s. Encomendamos duas unidades RC-27 da CMN Transmission como pe\u00e7as de reposi\u00e7\u00e3o para manter em estoque. O envio para a Austr\u00e1lia levou 12 dias, o que foi mais r\u00e1pido do que eu esperava, e a embalagem era excelente, sem nenhum dano. Instalei a primeira no m\u00eas passado para substituir uma unidade com defeito e a instala\u00e7\u00e3o ocorreu sem problemas. A classifica\u00e7\u00e3o de torque est\u00e1 bem dentro do que nossos tratores de 60 HP precisam. Pe\u00e7as de caixa de engrenagens para ro\u00e7adeiras rotativas de boa qualidade tamb\u00e9m est\u00e3o dispon\u00edveis com o fornecedor, o que \u00e9 uma vantagem.\u201d<\/p>\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">Diego Fuentes Ramirez, Manuten\u00e7\u00e3o de Estradas, M\u00e9xico<br \/>\n<\/b> \u201cExcelente caixa de engrenagens para ro\u00e7adeira rotativa. Comprei-a para substituir a de um equipamento que usamos na manuten\u00e7\u00e3o de estradas rurais na regi\u00e3o norte. A rela\u00e7\u00e3o de 1:2,83 \u00e9 perfeita para a vegeta\u00e7\u00e3o densa que encontramos por aqui. Est\u00e1 instalada h\u00e1 6 meses sem problemas, os retentores n\u00e3o apresentaram nenhum vazamento. O atendimento ao cliente da CMN foi muito atencioso; eles confirmaram a compatibilidade com a minha ro\u00e7adeira antes de eu fazer o pedido. Recomendo fortemente para quem procura uma caixa de engrenagens agr\u00edcola de qualidade a um bom pre\u00e7o.\u201d<\/p>\n<p data-path-to-node=\"4\"><b data-path-to-node=\"4\" data-index-in-node=\"0\">Martin Okafor, Distribuidor de Pe\u00e7as Agr\u00edcolas, Reino Unido<\/b><br \/>\n\u201cDistribu\u00edmos pe\u00e7as para m\u00e1quinas agr\u00edcolas em todo o Reino Unido e adicionamos a caixa de engrenagens CMN RC-27 ao nosso estoque este ano como uma op\u00e7\u00e3o de substitui\u00e7\u00e3o direta para clientes que utilizam caixas de engrenagens Omni. O lote inicial de 20 unidades esgotou mais r\u00e1pido do que o previsto, principalmente para empreiteiros que utilizam ro\u00e7adeiras e cortadores rotativos em tratores de 40 a 90 HP. O feedback dos usu\u00e1rios finais tem sido positivo no geral. Um pequeno ponto: as instru\u00e7\u00f5es de instala\u00e7\u00e3o poderiam ser mais detalhadas para quem instala pela primeira vez. Fizemos um novo pedido de 30 unidades e o prazo de entrega foi cumprido conforme prometido. Fornecedores confi\u00e1veis \u200b\u200bde caixas de engrenagens para cortadores rotativos s\u00e3o dif\u00edceis de encontrar, e a CMN est\u00e1 conquistando esse status.\u201d<\/p>\n<p data-path-to-node=\"5\"><b data-path-to-node=\"5\" data-index-in-node=\"0\">Thierry Marchand, Fazenda Mista, Fran\u00e7a<br \/>\n<\/b> \u201cJ\u00e1 faz tr\u00eas anos que uso esta caixa de engrenagens CMN na minha ro\u00e7adeira rotativa, rebocada por um motor Fendt de 45 HP. Sinceramente, estou muito satisfeito. A qualidade de fabrica\u00e7\u00e3o \u00e9 excelente, os retentores de tripla veda\u00e7\u00e3o mant\u00eam o \u00f3leo bem mesmo depois de trabalhar em prados \u00famidos durante todo o ver\u00e3o. O pre\u00e7o \u00e9 razo\u00e1vel em compara\u00e7\u00e3o com as pe\u00e7as originais. Entrei em contato com o servi\u00e7o t\u00e9cnico antes da compra para verificar a compatibilidade e eles responderam rapidamente com dados t\u00e9cnicos precisos. Recomendo sem hesitar para substituir uma caixa de engrenagens de ro\u00e7adeira rotativa no fim da vida \u00fatil.\u201d<\/p>\n<p data-path-to-node=\"6\"><b data-path-to-node=\"6\" data-index-in-node=\"0\">Roberto Alves Nogueira, Fazenda de Soja, Brasil<br \/>\n<\/b> \u201cOperamos uma lavoura de soja e milho no Mato Grosso e mantemos 8 ro\u00e7adeiras rotativas para o manejo de restolho durante nossos ciclos de plantio. A caixa de engrenagens de reposi\u00e7\u00e3o RC-27 da CMN tornou-se nossa especifica\u00e7\u00e3o padr\u00e3o para reconstru\u00e7\u00f5es. Instalamos 5 unidades em 18 meses e nenhuma nos deu problemas. O torque de sa\u00edda lida com nossas fileiras de restolho de soja denso sem travar, mesmo em nossa velocidade t\u00edpica de opera\u00e7\u00e3o no campo. O prazo de entrega da Coreia para o Brasil \u00e9 de cerca de 3 semanas, o que conseguimos administrar mantendo duas unidades em estoque. O pre\u00e7o torna f\u00e1cil justificar a compra como um item de manuten\u00e7\u00e3o planejada, em vez de um gasto emergencial.\u201d<\/p>\n<p data-path-to-node=\"7\"><b data-path-to-node=\"7\" data-index-in-node=\"0\">Klaus Hofmann, empreiteiro agr\u00edcola, Alemanha<\/b><br \/>\n\u201cSou um prestador de servi\u00e7os agr\u00edcolas e instalei esta caixa de engrenagens como substituta da nossa caixa de engrenagens Omni desgastada em uma ro\u00e7adeira rotativa com um trator de 90 HP. Encaixou perfeitamente, todas as dimens\u00f5es de conex\u00e3o est\u00e3o exatas. Funciona muito bem, sem ru\u00eddos, sem folga no eixo de transmiss\u00e3o. Fiz a troca de \u00f3leo ap\u00f3s 50 horas, conforme descrito no manual, e o \u00f3leo estava limpo. A carca\u00e7a da caixa de engrenagens passa uma impress\u00e3o de robustez, significativamente mais pesada do que as r\u00e9plicas baratas que vi em outros lugares. Entrega r\u00e1pida para a Alemanha, desembara\u00e7o aduaneiro coordenado impecavelmente pela transportadora. Recomendo a compra sem hesitar.\u201d<\/p>\n<p data-path-to-node=\"8\"><b data-path-to-node=\"8\" data-index-in-node=\"0\">Paul Leblanc, Pomar de Ma\u00e7\u00e3s, Canad\u00e1<br \/>\n<\/b> \u201cEncomendei a RC-27 para o meu projeto de cortador de grama personalizado para pomar em Ont\u00e1rio. Encontrar uma caixa de engrenagens de reposi\u00e7\u00e3o para aplica\u00e7\u00f5es de corte rotativo que se adequasse \u00e0s dimens\u00f5es modificadas do nosso deck foi dif\u00edcil at\u00e9 eu encontrar a CMN. Liguei para o suporte t\u00e9cnico antes de fazer o pedido e o engenheiro confirmou que a flange quadrada de 6,18 polegadas e a dimens\u00e3o de 6,4 polegadas entre o centro do eixo e a flange funcionariam para a nossa aplica\u00e7\u00e3o. A unidade chegou em 9 dias \u00fateis da Coreia. Estou muito satisfeito com a qualidade da constru\u00e7\u00e3o. O acabamento com veda\u00e7\u00e3o tripla \u00e9 claramente superior \u00e0s unidades chinesas de baixo custo que experimentei anteriormente. Esta \u00e9 uma caixa de engrenagens feita para durar. Vou encomendar uma segunda unidade para a nossa outra m\u00e1quina de pomar.\u201d<\/p>\n<p data-path-to-node=\"9\"><b data-path-to-node=\"9\" data-index-in-node=\"0\">Marco Brambilla, Cultura Forrageira, It\u00e1lia<\/b><br \/>\n\u201cSomos uma fazenda no Piemonte com cerca de 80 hectares de forragem e substitu\u00edmos a caixa de engrenagens original de uma de nossas segadoras rotativas pelo modelo CMN RC-27. A qualidade de constru\u00e7\u00e3o \u00e9 excelente, a carca\u00e7a de ferro fundido d\u00factil \u00e9 muito robusta. Em seguida, fizemos a reconstru\u00e7\u00e3o da caixa de engrenagens de outra segadora rotativa usando pe\u00e7as de reposi\u00e7\u00e3o tamb\u00e9m encomendadas da CMN. O servi\u00e7o p\u00f3s-venda foi excelente; eles nos enviaram a documenta\u00e7\u00e3o t\u00e9cnica detalhada de que precis\u00e1vamos para o trabalho. A entrega na It\u00e1lia levou cerca de 15 dias. Produto recomendado.\u201d<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A caixa de engrenagens RC-27 para cortadores rotativos, compat\u00edvel com a caixa de engrenagens Omni RC-27, \u00e9 uma caixa de engrenagens agr\u00edcola robusta, projetada especificamente para opera\u00e7\u00f5es exigentes no campo. Como substituta direta da unidade Omni RC-27, oferece excelente compatibilidade dimensional e funcional, tornando-se uma escolha confi\u00e1vel entre fornecedores de caixas de engrenagens para cortadores rotativos e equipes de servi\u00e7o OEM em todo o mundo. Projetada para acionar l\u00e2minas rotativas com precis\u00e3o e durabilidade, esta caixa de engrenagens \u00e9 amplamente utilizada em aplica\u00e7\u00f5es de corte de grama, tritura\u00e7\u00e3o de palha e limpeza de mato em uma ampla gama de implementos acionados por tratores.<\/p>","protected":false},"featured_media":7841,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"The RC-27 Rotary Cutter Gearbox Replacement for Omni RC-27 Gearbox is a heavy-duty agricultural gearbox engineered specifically for demanding field operations. As a direct replacement for the Omni RC-27 unit, it delivers outstanding dimensional and functional compatibility, making it a trusted choice among rotary cutter gearbox suppliers and OEM service teams worldwide. Designed to drive rotary knives with precision and durability, this gearbox is widely used in grass cutting, straw crushing, and brush clearing applications across a broad range of tractor-driven implements. The unit produces a working torque range of 2,683 to 6,183 lb.-in. (303 to 698 Nm), supported by bevel gears and a triple lip spring-loaded seal system that keeps field contamination out even in the harshest environments. Whether operating at 540 RPM for lighter cutting tasks or 1,000 RPM for high-throughput commercial applications, the RC-27 maintains consistent power output and adapts reliably to variable crop and terrain conditions.\r\n\r\nThe gearbox for rotary cutter applications must convert the high rotational speed of the tractor PTO shaft into the lower-speed, high-torque output required by cutting assemblies. The RC-27 accomplishes this through a precision bevel gear set with selectable ratios of 1:2.5 and 1:2.83, allowing operators to tune output torque to match the density of vegetation being processed. This multi-ratio capability is particularly valuable in mixed-terrain operations such as steep slopes, wetlands, or heavily timbered pasture edges where load conditions shift rapidly. Tapered roller and deep groove ball bearings ensure shaft alignment is maintained under both radial and axial loads, while the 20 oz. (0.59 L) oil-bath lubrication system keeps internal components cool and protected throughout extended work cycles. At 47 lbs. (21.3 kg), the RC-27 is compact enough for finishing mowers and rotary slashers that require a gearbox for rotary cutter service rated from 20 HP to 90 HP tractor power ranges, making it one of the most versatile units in its class.\r\n\r\n<img class=\"aligncenter wp-image-7841 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox.webp\" alt=\"RC-27 Rotary Cutter Gearbox\" width=\"800\" height=\"800\" \/>\r\n<h2>Product Specifications<\/h2>\r\n<table style=\"height: 300px; width: 100%;\" border=\"1\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\r\n<tbody>\r\n<tr>\r\n<td style=\"text-align: center;\">Model:<\/td>\r\n<td style=\"text-align: center;\">RC-27 Gearbox<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Torque:<\/td>\r\n<td style=\"text-align: center;\">2,683 - 6,183 lb.-in.\r\n(303 - 698 Nm.)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Ratios:<\/td>\r\n<td style=\"text-align: center;\">1:2.5, 1:2.83<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Gear Type:<\/td>\r\n<td style=\"text-align: center;\">Bevel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Seal Type:<\/td>\r\n<td style=\"text-align: center;\">Triple Lip Spring Loaded<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Bearing Type:<\/td>\r\n<td style=\"text-align: center;\">Tapered Roller, Deep Groove Ball<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Oil Capacity:<\/td>\r\n<td style=\"text-align: center;\">20 oz.\r\n(0.59 L)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Weight:<\/td>\r\n<td style=\"text-align: center;\">47 lbs.\r\n(21.3 kg.)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Applications:<\/td>\r\n<td style=\"text-align: center;\">Finishing Mowers\r\nRotary Cutters\r\nRotary Slashers<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h2>RC-27 Rotary Cutter Gearbox Dimensions<\/h2>\r\n<img class=\"aligncenter wp-image-7909 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox-Dimensions.webp\" alt=\"Rotary Cutter Gearbox Dimensions\" width=\"1200\" height=\"600\" \/>\r\n<table style=\"width: 100%;\" contenteditable=\"true\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\r\n<thead>\r\n<tr>\r\n<th style=\"text-align: center;\" rowspan=\"2\"><span style=\"font-weight: 500;\">Model<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Maximum\r\nWeight\r\nof Unit<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">CL to Thru\r\nCap\r\nA<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">CL to\r\nFlange\r\nB<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Flange to\r\nHub Pilot\r\nC<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Hub Pilot\r\nDiameter\r\nH<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Flange Diameter\r\nD1<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Bolt Hole\r\nPattern\r\nE1<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Mounting Holes\r\nF1<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Flange Square\r\nSize\r\nD2<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Bolt Hole\r\nPattern\r\nE2<\/span><\/th>\r\n<th style=\"text-align: center;\" colspan=\"2\"><span style=\"font-weight: 500;\">Mounting Holes\r\nF2<\/span><\/th>\r\n<\/tr>\r\n<tr>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">lb<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">kg<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">in<\/span><\/th>\r\n<th style=\"text-align: center;\"><span style=\"font-weight: 500;\">mm<\/span><\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-20<\/td>\r\n<td style=\"text-align: center;\">34<\/td>\r\n<td style=\"text-align: center;\">15<\/td>\r\n<td style=\"text-align: center;\">3.0<\/td>\r\n<td style=\"text-align: center;\">76<\/td>\r\n<td style=\"text-align: center;\">6.5<\/td>\r\n<td style=\"text-align: center;\">165<\/td>\r\n<td style=\"text-align: center;\">2.40<\/td>\r\n<td style=\"text-align: center;\">61.0<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">6.18<\/td>\r\n<td style=\"text-align: center;\">157<\/td>\r\n<td style=\"text-align: center;\">6.8<\/td>\r\n<td style=\"text-align: center;\">171.5<\/td>\r\n<td style=\"text-align: center;\">(4) 0.67<\/td>\r\n<td style=\"text-align: center;\">(4) 17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-27<\/td>\r\n<td style=\"text-align: center;\">47<\/td>\r\n<td style=\"text-align: center;\">21<\/td>\r\n<td style=\"text-align: center;\">3.5<\/td>\r\n<td style=\"text-align: center;\">88<\/td>\r\n<td style=\"text-align: center;\">6.4<\/td>\r\n<td style=\"text-align: center;\">164<\/td>\r\n<td style=\"text-align: center;\">2.40<\/td>\r\n<td style=\"text-align: center;\">61.0<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">6.18<\/td>\r\n<td style=\"text-align: center;\">157<\/td>\r\n<td style=\"text-align: center;\">6.8<\/td>\r\n<td style=\"text-align: center;\">171.5<\/td>\r\n<td style=\"text-align: center;\">(4) 0.67<\/td>\r\n<td style=\"text-align: center;\">(4) 17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-30<\/td>\r\n<td style=\"text-align: center;\">51<\/td>\r\n<td style=\"text-align: center;\">23<\/td>\r\n<td style=\"text-align: center;\">3.9<\/td>\r\n<td style=\"text-align: center;\">100<\/td>\r\n<td style=\"text-align: center;\">6.4<\/td>\r\n<td style=\"text-align: center;\">164<\/td>\r\n<td style=\"text-align: center;\">3.30<\/td>\r\n<td style=\"text-align: center;\">84.0<\/td>\r\n<td style=\"text-align: center;\">2.5<\/td>\r\n<td style=\"text-align: center;\">63.5<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">6.89<\/td>\r\n<td style=\"text-align: center;\">175<\/td>\r\n<td style=\"text-align: center;\">6.8<\/td>\r\n<td style=\"text-align: center;\">171.5<\/td>\r\n<td style=\"text-align: center;\">(4) 0.67<\/td>\r\n<td style=\"text-align: center;\">(4) 17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-51<\/td>\r\n<td style=\"text-align: center;\">56<\/td>\r\n<td style=\"text-align: center;\">25<\/td>\r\n<td style=\"text-align: center;\">3.7<\/td>\r\n<td style=\"text-align: center;\">94<\/td>\r\n<td style=\"text-align: center;\">6.4<\/td>\r\n<td style=\"text-align: center;\">164<\/td>\r\n<td style=\"text-align: center;\">3.50<\/td>\r\n<td style=\"text-align: center;\">88.9<\/td>\r\n<td style=\"text-align: center;\">2.5<\/td>\r\n<td style=\"text-align: center;\">63.5<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">6.89<\/td>\r\n<td style=\"text-align: center;\">175<\/td>\r\n<td style=\"text-align: center;\">6.8<\/td>\r\n<td style=\"text-align: center;\">171.5<\/td>\r\n<td style=\"text-align: center;\">(4) 0.67<\/td>\r\n<td style=\"text-align: center;\">(4) 17<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-61<\/td>\r\n<td style=\"text-align: center;\">81<\/td>\r\n<td style=\"text-align: center;\">37<\/td>\r\n<td style=\"text-align: center;\">4.2<\/td>\r\n<td style=\"text-align: center;\">107<\/td>\r\n<td style=\"text-align: center;\">7.2<\/td>\r\n<td style=\"text-align: center;\">183<\/td>\r\n<td style=\"text-align: center;\">3.50<\/td>\r\n<td style=\"text-align: center;\">88.9<\/td>\r\n<td style=\"text-align: center;\">2.5<\/td>\r\n<td style=\"text-align: center;\">63.5<\/td>\r\n<td style=\"text-align: center;\">9.5<\/td>\r\n<td style=\"text-align: center;\">242.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(4) 0.787<\/td>\r\n<td style=\"text-align: center;\">(4) 20<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-71<\/td>\r\n<td style=\"text-align: center;\">83<\/td>\r\n<td style=\"text-align: center;\">38<\/td>\r\n<td style=\"text-align: center;\">4.2<\/td>\r\n<td style=\"text-align: center;\">107<\/td>\r\n<td style=\"text-align: center;\">7.2<\/td>\r\n<td style=\"text-align: center;\">183<\/td>\r\n<td style=\"text-align: center;\">3.50<\/td>\r\n<td style=\"text-align: center;\">88.9<\/td>\r\n<td style=\"text-align: center;\">2.5<\/td>\r\n<td style=\"text-align: center;\">63.5<\/td>\r\n<td style=\"text-align: center;\">9.5<\/td>\r\n<td style=\"text-align: center;\">242.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(4) 0.787<\/td>\r\n<td style=\"text-align: center;\">(4) 20<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-81<\/td>\r\n<td style=\"text-align: center;\">98<\/td>\r\n<td style=\"text-align: center;\">45<\/td>\r\n<td style=\"text-align: center;\">4.6<\/td>\r\n<td style=\"text-align: center;\">116<\/td>\r\n<td style=\"text-align: center;\">11.0<\/td>\r\n<td style=\"text-align: center;\">279<\/td>\r\n<td style=\"text-align: center;\">3.50<\/td>\r\n<td style=\"text-align: center;\">88.9<\/td>\r\n<td style=\"text-align: center;\">2.5<\/td>\r\n<td style=\"text-align: center;\">63.5<\/td>\r\n<td style=\"text-align: center;\">9.6<\/td>\r\n<td style=\"text-align: center;\">245.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(4) 0.787<\/td>\r\n<td style=\"text-align: center;\">(4) 20<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-100<\/td>\r\n<td style=\"text-align: center;\">96<\/td>\r\n<td style=\"text-align: center;\">44<\/td>\r\n<td style=\"text-align: center;\">4.8<\/td>\r\n<td style=\"text-align: center;\">121<\/td>\r\n<td style=\"text-align: center;\">7.1<\/td>\r\n<td style=\"text-align: center;\">180<\/td>\r\n<td style=\"text-align: center;\">3.78<\/td>\r\n<td style=\"text-align: center;\">96.0<\/td>\r\n<td style=\"text-align: center;\">2.5<\/td>\r\n<td style=\"text-align: center;\">63.5<\/td>\r\n<td style=\"text-align: center;\">9.4<\/td>\r\n<td style=\"text-align: center;\">240.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(4) 0.787<\/td>\r\n<td style=\"text-align: center;\">(4) 20<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-130S<\/td>\r\n<td style=\"text-align: center;\">109<\/td>\r\n<td style=\"text-align: center;\">49<\/td>\r\n<td style=\"text-align: center;\">5.1<\/td>\r\n<td style=\"text-align: center;\">130<\/td>\r\n<td style=\"text-align: center;\">7.1<\/td>\r\n<td style=\"text-align: center;\">180<\/td>\r\n<td style=\"text-align: center;\">4.00<\/td>\r\n<td style=\"text-align: center;\">102.0<\/td>\r\n<td style=\"text-align: center;\">2.9<\/td>\r\n<td style=\"text-align: center;\">73.0<\/td>\r\n<td style=\"text-align: center;\">9.8<\/td>\r\n<td style=\"text-align: center;\">250.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(6) 0.807<\/td>\r\n<td style=\"text-align: center;\">(6) 21<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-130L<\/td>\r\n<td style=\"text-align: center;\">120<\/td>\r\n<td style=\"text-align: center;\">54<\/td>\r\n<td style=\"text-align: center;\">5.1<\/td>\r\n<td style=\"text-align: center;\">130<\/td>\r\n<td style=\"text-align: center;\">7.1<\/td>\r\n<td style=\"text-align: center;\">180<\/td>\r\n<td style=\"text-align: center;\">7.20<\/td>\r\n<td style=\"text-align: center;\">184.0<\/td>\r\n<td style=\"text-align: center;\">3.8<\/td>\r\n<td style=\"text-align: center;\">96.0<\/td>\r\n<td style=\"text-align: center;\">9.8<\/td>\r\n<td style=\"text-align: center;\">250.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(6) 0.807<\/td>\r\n<td style=\"text-align: center;\">(6) 21<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-145<\/td>\r\n<td style=\"text-align: center;\">110<\/td>\r\n<td style=\"text-align: center;\">50<\/td>\r\n<td style=\"text-align: center;\">5.6<\/td>\r\n<td style=\"text-align: center;\">142<\/td>\r\n<td style=\"text-align: center;\">8.9<\/td>\r\n<td style=\"text-align: center;\">225<\/td>\r\n<td style=\"text-align: center;\">8.05<\/td>\r\n<td style=\"text-align: center;\">204.5<\/td>\r\n<td style=\"text-align: center;\">3.8<\/td>\r\n<td style=\"text-align: center;\">96.0<\/td>\r\n<td style=\"text-align: center;\">10.2<\/td>\r\n<td style=\"text-align: center;\">260.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(6) 0.807<\/td>\r\n<td style=\"text-align: center;\">(6) 21<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-150L<\/td>\r\n<td style=\"text-align: center;\">145<\/td>\r\n<td style=\"text-align: center;\">66<\/td>\r\n<td style=\"text-align: center;\">5.1<\/td>\r\n<td style=\"text-align: center;\">130<\/td>\r\n<td style=\"text-align: center;\">11.0<\/td>\r\n<td style=\"text-align: center;\">280<\/td>\r\n<td style=\"text-align: center;\">7.20<\/td>\r\n<td style=\"text-align: center;\">184.0<\/td>\r\n<td style=\"text-align: center;\">3.8<\/td>\r\n<td style=\"text-align: center;\">96.0<\/td>\r\n<td style=\"text-align: center;\">9.8<\/td>\r\n<td style=\"text-align: center;\">250.0<\/td>\r\n<td style=\"text-align: center;\">8.0<\/td>\r\n<td style=\"text-align: center;\">203.2<\/td>\r\n<td style=\"text-align: center;\">(6) 0.807<\/td>\r\n<td style=\"text-align: center;\">(6) 21<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">RC-200<\/td>\r\n<td style=\"text-align: center;\">220<\/td>\r\n<td style=\"text-align: center;\">100<\/td>\r\n<td style=\"text-align: center;\">6.4<\/td>\r\n<td style=\"text-align: center;\">162<\/td>\r\n<td style=\"text-align: center;\">9.5<\/td>\r\n<td style=\"text-align: center;\">241<\/td>\r\n<td style=\"text-align: center;\">8.00<\/td>\r\n<td style=\"text-align: center;\">203.0<\/td>\r\n<td style=\"text-align: center;\">5.3<\/td>\r\n<td style=\"text-align: center;\">135.0<\/td>\r\n<td style=\"text-align: center;\">11.8<\/td>\r\n<td style=\"text-align: center;\">300.0<\/td>\r\n<td style=\"text-align: center;\">10<\/td>\r\n<td style=\"text-align: center;\">254.0<\/td>\r\n<td style=\"text-align: center;\">(6) 0.905<\/td>\r\n<td style=\"text-align: center;\">(6) 23<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<td style=\"text-align: center;\">-<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h2>Key Features of RC-27 Rotary Cutter Gearbox<\/h2>\r\n1. PTO Drive Adaptation\r\nThe RC-27 connects directly to the tractor PTO shaft and supports both standard 540 RPM and high-speed 1,000 RPM operation without requiring secondary adaptors. Quick-change spline couplings allow the unit to be installed or removed in minutes, reducing downtime during implement changeovers. This broad compatibility makes the RC-27 a reliable gearbox for rotary cutter setups across tractors in the 20 HP to 90 HP range, from compact utility models to full-scale row-crop machines.\r\n\r\n2. Terrain Adaptability\r\nThe RC-27 is engineered to work with floating cutter deck designs where the implement head tracks ground contour automatically. When the deck rises or drops over rocks, furrows, or drainage channels, the gearbox mounting geometry accommodates that movement without transmitting destructive bending forces to the input shaft or output bearing assembly. This is especially critical in high-impact scenarios such as sloped pastures and rough stubble fields where fixed-position gearboxes suffer rapid fatigue failure around mounting flanges.\r\n\r\n3. Modular Blade Interface\r\nThe output shaft of the RC-27 is machined to accept a range of cutting tool configurations, including Y-type free-swinging blades, hammer blade assemblies, and disc knife carriers. By simply swapping the blade set, operators can transition the same machine between mowing, straw crushing, and brush mulching tasks without changing the gearbox. This modular approach reduces total implement cost and maximises machine utilisation across seasonal field operations and varying crop types.\r\n\r\n4. Field Maintenance Convenience\r\nThe rotary cutter gearbox oil fill port and drain plug are positioned for easy access without removing the gearbox from the implement. Operators can check the rotary cutter gearbox oil level, top up, or perform a full oil change directly in the field using standard hand tools. This design dramatically reduces service labour time during busy cutting seasons. The 20 oz. (0.59 L) oil capacity is intentionally sized for a quick drain-and-refill cycle, encouraging operators to maintain proper lubrication intervals for long gearbox service life.\r\n\r\n5. Durability and Environmental Protection\r\nThe gearbox housing is constructed from high-strength ductile iron, providing superior resistance to impact loads generated when blades strike embedded rocks, root stumps, or compacted soil ridges. All external surfaces receive a rust-inhibiting primer coating that resists corrosion from prolonged exposure to mud, standing water, fertiliser residue, and plant sap. The triple lip spring-loaded seal system provides multi-stage protection against dust, grit, and moisture intrusion, maintaining internal oil integrity across thousands of operating hours in wet and abrasive field conditions.\r\n\r\n6. Safety and Overload Protection\r\nThe RC-27 design is compatible with overload protection systems including shear bolt couplings and slip clutch driveline assemblies installed upstream on the PTO driveshaft. When a blade strikes an immovable object and torque spikes beyond rated capacity, the overload device disengages the drivetrain before that shock load reaches the bevel gears or bearing assemblies inside the gearbox. This protection mechanism is essential for preserving rotary cutter gearbox parts in high-debris environments such as fields that contain buried rocks, irrigation pipe fragments, or hardwood stumps.\r\n\r\n<img class=\"aligncenter wp-image-7841 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-27-Rotary-Cutter-Gearbox.webp\" alt=\"RC-27 Rotary Cutter Gearbox\" width=\"800\" height=\"800\" \/>\r\n\r\n[video width=\"1280\" height=\"720\" mp4=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/Rotary-Cutter-Gearbox.mp4\"][\/video]\r\n<h2>Working Principle<\/h2>\r\nA rotary cutter gearbox is the mechanical core of any tractor-driven cutting implement. Its job is to intercept the high-speed rotational energy produced by the tractor Power Take-Off (PTO) shaft and convert it into the lower-speed, higher-torque drive required by the cutting assembly below. Without a properly functioning agricultural gearbox at the centre of this drivetrain, the blade carrier would either spin too fast and disintegrate the cut material into unmanageable fragments, or stall under load when contacting thick vegetation.\r\n\r\nIn the RC-27, power enters through the input shaft, which is splined to accept the standard PTO driveline at either 540 RPM or 1,000 RPM depending on the tractor setting and operator selection. The input shaft transmits that rotational energy into a hardened alloy steel bevel gear set. Bevel gears are the preferred transmission type for rotary cutters because they redirect the axis of rotation by 90 degrees: the input shaft runs horizontally in line with the tractor, while the output shaft runs vertically downward to drive the blade spindle. This right-angle power transfer is fundamental to the compact, low-profile form of all rotary cutter implements from 20 HP grass-cutting models through to 100 HP commercial brush mulchers.\r\n\r\nThe RC-27 offers two selectable gear ratios: 1:2.5 and 1:2.83. At a 1:2.5 ratio, the output shaft spins at 40% of input speed, increasing torque proportionally. At 1:2.83, the speed reduction is slightly greater, producing higher torque at the blade hub. Operators running lighter implements on 25 HP to 45 HP tractors may prefer the 1:2.5 ratio for its faster blade tip speed, while those operating heavier 60 HP to 90 HP cutter decks in dense vegetation typically select 1:2.83 for maximum cutting force. The torque output spans 2,683 to 6,183 lb.-in. (303 to 698 Nm), covering a practical working range that suits finishing mowers, rotary cutters, and rotary slashers across all standard agricultural applications.\r\n\r\nInside the housing, tapered roller bearings and deep groove ball bearings support the input and output shafts against both the radial loads generated by belt pull and blade imbalance, and the axial thrust loads produced by bevel gear mesh. Proper bearing preload is critical: excessive endplay allows gear tooth contact to wander off the designed pitch point, accelerating wear and generating heat; insufficient preload causes premature bearing fatigue. The oil-bath lubrication system, filled to the correct rotary cutter gearbox oil level of 20 oz. (0.59 L), ensures all gear tooth and bearing surfaces remain continuously lubricated throughout operation. The triple lip spring-loaded seals on each shaft exit point maintain this internal oil environment against the dust, water, and crop debris typical of multi-terrain work. Together, these systems allow the RC-27 to support multi-speed regulation across different crop densities and terrains including steep slopes and wetlands, delivering stable power output regardless of how dramatically the cutting load varies between rows.\r\n\r\n<img class=\"aligncenter wp-image-7863 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-2.webp\" alt=\"Rotary Cutter Gearbox\" width=\"1200\" height=\"900\" \/>\r\n<h2>Applications of the RC-27 Rotary Mower Gearbox<\/h2>\r\n<div>\r\n<h3>Grass Cutting and Straw Crushing<\/h3>\r\nThe most common application for the RC-27 replacement gearbox for rotary cutter implements. The bevel gear drive spins the blade carrier at the correct velocity to cleanly sever grass stems and reduce straw material from corn, wheat, and sorghum crops into fragments suitable for either field incorporation or baling. The selectable ratio allows the operator to adjust tip speed for fine mulch or coarse chop depending on end-use requirements.\r\n\r\n<\/div>\r\n<div>\r\n<h3>Shrub and Bramble Clearing<\/h3>\r\nBrush clearing along fence lines, ditch banks, and woodland edges demands both high torque and reliable overload protection. The RC-27 delivers up to 6,183 lb.-in. of torque to push through woody stalks up to 2 to 3 inches in diameter, while the gearbox housing absorbs repeated impact shock loads from blade contact with embedded roots and stumps. This capability makes it a first choice for rotary cutter gearbox for sale requirements in brush management and land reclamation projects.\r\n\r\n<\/div>\r\n<div>\r\n<h3>Stubble Treatment and Field Preparation<\/h3>\r\nAfter grain harvest, rice stubble, wheat stubble, and soybean residue must be chopped and incorporated before the next planting cycle. A rotary cutter fitted with the RC-27 and disc knife blades can reduce standing stubble rows at working speeds of 4 to 6 km\/h, processing material fine enough for fast decomposition. The consistent torque output across the full rotary cutter gearbox ratio range prevents stalling when the cutter transitions between sparse and dense stubble zones.\r\n\r\n<\/div>\r\n<div>\r\n<h3>Orchard and Vineyard Floor Management<\/h3>\r\nLow-profile cutter decks paired with the RC-27 can operate between vine or tree rows in orchards and vineyards where overhead clearance is limited. The compact gearbox dimensions (3.5 in. CL to Thru Cap, 6.4 in. CL to Flange) allow these implements to fit under low branches while maintaining adequate blade clearance from the soil. Weed control between permanent crops is a precision task requiring a consistent rotary cutter gearbox oil level and well-maintained seals to prevent contamination in food-producing environments.\r\n\r\n<\/div>\r\n<div>\r\n<h3>Roadside and Right-of-Way Maintenance<\/h3>\r\nMunicipal and highway maintenance contractors operating 40 HP to 75 HP rotary cutter gearbox-equipped mowers along road verges, utility rights-of-way, and drainage ditches rely on the RC-27 for its durability in continuous-duty cycles. Work shifts of 6 to 8 hours per day demand both robust internal lubrication and reliable sealing. The oil-bath design and spring-loaded lip seals ensure the gearbox performs without overheating even during extended single-pass operations on undulating ground.\r\n\r\n<\/div>\r\n<div>\r\n<h3>Cover Crop Termination and Green Manure<\/h3>\r\nOrganic and reduced-tillage farming systems often terminate cover crops mechanically before planting cash crops. A rotary cutter carrying the RC-27 agricultural gearbox can roll and cut standing cover crops at controlled heights, leaving a surface mulch layer that suppresses weeds and retains soil moisture. The blade speed adjustability through ratio selection allows operators on 25 HP compact tractors through to 60 HP mid-range machines to match blade aggressiveness to the density of cover crop biomass being processed.\r\n\r\n<\/div>\r\n<img class=\"aligncenter wp-image-7897 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-2.webp\" alt=\"Rotary Cutter Gearbox Applications\" width=\"1200\" height=\"820\" \/>\r\n<h2>RC-27 Rotary Cutter Gearbox Components<\/h2>\r\n1. Gearbox Housing\r\nThe outer shell is precision-cast from ductile iron, a material chosen specifically for its ability to absorb shock loads without fracturing under sudden impact. The housing encloses and aligns all internal components, maintains oil containment under pressure, and provides the structural mounting interface to the cutter deck frame through the square flange (6.18 in. \/ 157 mm). All boss faces are machined to close tolerances to ensure leak-free mating with end caps and shaft seals.\r\n\r\n2. Bevel Gears\r\nThe primary power-transmission elements of the agricultural gearbox. Forged alloy steel blanks are precision hobbed, heat-treated to case-harden the tooth flanks, and finish-ground to achieve a smooth, consistent tooth profile. This process produces gears capable of transmitting up to 698 Nm of torque while generating minimal heat and noise. The 90-degree bevel arrangement redirects PTO shaft rotation downward to the blade spindle, making right-angle power transfer both compact and efficient.\r\n\r\n3. Input Shaft\r\nMachined from carburised alloy steel, the input shaft receives rotational drive from the PTO driveline through a standard spline coupling. The shaft is ground to precise diameter tolerances to ensure correct bearing fit and gear mesh depth. Spline geometry conforms to industry-standard profiles compatible with 1-3\/8 in. and 1-3\/4 in. PTO configurations across tractors in the 20 HP to 100 HP power range, enabling broad cross-brand tractor compatibility without requiring custom adaptors.\r\n\r\n4. Output Shaft\r\nPositioned vertically downward from the bevel gear set, the output shaft delivers the converted torque directly to the blade hub or cutting assembly. This shaft must withstand not only continuous torsional loads but also the repetitive bending moments and axial impacts generated each time a blade strikes debris. It is manufactured from the same carburised alloy steel as the input shaft, with additional attention to surface finish in the seal and bearing contact zones to prevent accelerated seal wear.\r\n\r\n5. Bearings\r\nThe RC-27 uses a combination of tapered roller bearings and deep groove ball bearings selected to handle the mixed radial and axial load profiles generated by bevel gear operation. Tapered rollers on the input shaft manage the high axial thrust produced by the gear mesh, while deep groove ball bearings on the output shaft handle radial loads from blade imbalance. Bearing quality directly controls rotary cutter gearbox noise, heat generation, and overall service life between rebuilds.\r\n\r\n6. Triple Lip Oil Seals\r\nThree concentrically arranged lip seals with integrated garter springs are fitted around each shaft exit point on the RC-27. The innermost lip retains gear oil; the middle lip acts as a secondary barrier; the outer lip blocks the entry of abrasive field contaminants including dust, chaff, and mud. Failed oil seals are among the most common causes of premature rotary cutter gearbox repair requirements, making the triple-lip design a critical investment in long-term reliability. Spring loading maintains effective sealing force even as lip material wears gradually during service.\r\n\r\n7. Oil Lubrication System\r\nThe RC-27 uses an oil-bath lubrication system in which the lower portion of the bevel gear set runs partially submerged in gear oil. As the gears rotate, they carry oil upward through the mesh zone and splash it onto the bearings and shaft surfaces above. Maintaining the correct <a href=\"https:\/\/korea-transmission.com\/rotary-cutter-gearbox\/\"><strong>rotary cutter gearbox<\/strong><\/a> oil level of 20 oz. (0.59 L) is essential: underfilling starves the upper bearings of lubrication; overfilling causes churning losses and elevated operating temperature. GL-5 EP 80W-90 gear oil is the recommended rotary cutter gearbox oil for most operating conditions.\r\n\r\n8. Precision End Caps and Pressure Relief Plug\r\nCast iron end caps close both shaft bores in the housing, providing the clamping surfaces against which the oil seals operate and acting as secondary structural members that stiffen the housing against bending. A pressure relief plug on the gearbox housing allows air that expands inside the sealed oil cavity during operation to vent safely, preventing pressure build-up that would otherwise force gear oil past the shaft seals. This plug also serves as the reference point for rotary cutter gearbox oil level checks on compatible configurations.\r\n\r\n<img class=\"aligncenter wp-image-7873 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-1.webp\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-1.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-1-480x480.webp 480w\" alt=\"Rotary Cutter Gearbox Parts\" width=\"800\" height=\"800\" \/>\r\n<h2>Manufacturing Process<\/h2>\r\n1. Raw Material Qualification\r\nAll incoming steel and iron materials are subject to incoming quality control inspection including spectrographic chemical composition analysis and tensile strength verification. Ductile iron castings for the gearbox housing must meet minimum mechanical property standards before entering the production line. Alloy steel bar stock for shafts and gear blanks is certified to specified hardness ranges to ensure consistent heat-treatment response. Materials that fail incoming standards are quarantined and returned to suppliers before they can compromise finished product quality.\r\n\r\n2. Housing Casting and Rough Machining\r\nThe ductile iron housing is sand-cast to near-net shape and allowed to normalise before any machining begins. CNC machining centres then perform rough stock removal on all mating surfaces: the flange face, bearing bores, shaft exit bores, and oil port locations. Fixtures are precision-located to ensure all machining operations share a common datum reference, which guarantees that the final bearing bore alignment falls within design tolerances and that both shafts intersect at the correct 90-degree angle required for proper bevel gear mesh.\r\n\r\n3. Gear Blank Forging and Hobbing\r\nBevel gear blanks are forged from alloy steel to establish the correct fibre flow pattern for maximum tooth root strength. Forgings are then normalised and rough-turned before being loaded into CNC gear hobbing machines that cut the bevel tooth profile to design geometry. Tooth profile accuracy is verified on gear measurement centres using CMM probes. Any gear blank falling outside the specified involute profile tolerance or tooth thickness range is rejected before proceeding to heat treatment.\r\n\r\n4. Heat Treatment and Surface Hardening\r\nGear blanks and shafts undergo carburising heat treatment in controlled atmosphere furnaces to achieve a hardened case depth of 0.8 to 1.2 mm on all functional surfaces. Case hardening produces a wear-resistant outer layer while maintaining a tough, ductile core that resists fracture under shock loading. After carburising, parts are quenched and tempered to achieve the target surface hardness. Each batch is accompanied by test coupons that are destructively tested to verify case depth and core hardness before the batch is released for finish machining.\r\n\r\n5. Finish Machining and Shaft Grinding\r\nAfter heat treatment, shafts are precision cylindrically ground to achieve bearing journal diameters within H6\/h5 tolerance class. Seal contact surfaces receive additional superfinishing to achieve the Ra 0.4 surface roughness specification required for effective lip seal function. Housing bearing bores are finish-bored on CNC machining centres using the same datum reference as rough machining. Final bore diameter tolerances and roundness values are verified with air gauging equipment before assembly is authorised.\r\n\r\n6. Assembly and Preload Setting\r\nTrained assembly technicians install bearings, gears, shafts, and seals in a controlled sequence. Bearing preload is set by measuring rotational torque during assembly and adjusting shim packs to achieve the design-specified drag torque range. Correct preload is critical to achieving the intended gear tooth contact pattern and bearing service life. After assembly, each gearbox is filled with a small quantity of rotary cutter gearbox oil and run on a no-load test stand to verify smooth rotation, correct oil level function, and absence of abnormal noise or vibration before proceeding to final inspection.\r\n\r\n7. Surface Treatment and Final Inspection\r\nCompleted gearbox assemblies are shot-blasted to remove all surface scale and then primed with a rust-inhibiting red oxide coating that is applied to all external surfaces. Final inspection includes a dimensional check of all critical mounting surfaces against the reference drawing, a leak test using pressurised air immersed in water, and a visual check of all seal installations and hardware torque marks. Units passing all final inspection criteria are drained of test oil, plugged, tagged with production traceability codes, and packaged for shipment.\r\n\r\n<img class=\"aligncenter wp-image-7884 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Features-1.webp\" alt=\"Rotary Cutter Gearbox Features\" width=\"1600\" height=\"960\" \/>\r\n<h2>Installation Steps<\/h2>\r\n<div>\r\n<h3>1. Disengage Power and Prepare the Work Area<\/h3>\r\nBefore beginning any work, shut the tractor engine down completely, remove the ignition key, and engage the parking brake. Disconnect the PTO driveshaft from the tractor PTO stub and secure it away from the implement to prevent accidental engagement. Work on a level, firm surface with the implement lowered to the ground and supported on jack stands if required. Allow the old gearbox to cool completely if it has been in recent operation, as gear oil and housing surfaces will be hot.\r\n\r\n<\/div>\r\n<div>\r\n<h3>2. Drain the Old Gearbox Oil<\/h3>\r\nLocate the drain plug on the existing gearbox and position a suitable catch container below it before loosening. Allow the rotary cutter gearbox oil to drain fully into the container. Inspect the drained oil for metal particles, milky discolouration indicating water ingress, or burnt odour indicating overheating. The condition of the old oil provides useful diagnostic information about why the original gearbox failed. Dispose of waste oil in accordance with local environmental regulations.\r\n\r\n<\/div>\r\n<div>\r\n<h3>3. Remove the Old Gearbox from the Deck<\/h3>\r\nSupport the old gearbox with one hand or a suitable lifting strap while loosening the four flange mounting bolts in a cross pattern to release clamping load evenly. Note the position of any shim material between the flange and deck plate, as these shims affect blade height and should be reproduced during installation of the RC-27. Once the bolts are removed, slide the gearbox out of the blade hub connection and lower it carefully. Clean the mounting face on the deck plate of old gasket material, corrosion, and debris before fitting the new unit.\r\n\r\n<\/div>\r\n<div>\r\n<h3>4. Position and Bolt Down the RC-27<\/h3>\r\nAlign the RC-27's square flange (6.18 in. \/ 157 mm) with the deck plate mounting holes, reinstalling any original shim material beneath the flange. Thread the four mounting bolts by hand before torquing in a cross pattern to the implement manufacturer's specified torque value, typically 65 to 80 Nm for M12 grade 8.8 fasteners. Confirm the output shaft engages cleanly with the blade hub spline or adapter before final torquing. Apply thread-locking compound to bolt threads if specified by the cutter deck manufacturer.\r\n\r\n<\/div>\r\n<div>\r\n<h3>5. Fill with Gear Oil to the Correct Level<\/h3>\r\nRemove the fill plug and pour in fresh GL-5 EP 80W-90 gear oil (the recommended rotary cutter gearbox oil for most conditions) until oil begins to weep from the fill port, indicating it has reached the correct rotary cutter gearbox oil level. The RC-27 oil capacity is 20 oz. (0.59 L). Do not overfill, as excess oil generates additional heat through churning and may be forced past the output shaft seal during operation. Replace the fill plug and torque to specification. Wipe away any spilled oil from the housing exterior.\r\n\r\n<\/div>\r\n<div>\r\n<h3>6. Reconnect PTO Drive Shaft and Run-In Check<\/h3>\r\nReconnect the PTO driveshaft to the tractor PTO stub and verify that the safety shield rotates freely and is properly secured at both ends. Start the tractor, engage PTO at low throttle (approximately 60% of rated speed), and allow the gearbox to run unloaded for 2 to 3 minutes. Listen for abnormal noise, check for oil leaks around the flange and shaft seal areas, and confirm the driveshaft operating angle does not exceed 15 degrees. After the run-in check, shut down, re-inspect all fasteners, and the gearbox is ready for field operation.\r\n\r\n<img class=\"aligncenter wp-image-7864 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-3.webp\" alt=\"Rotary Cutter Gearbox\" width=\"1200\" height=\"900\" \/>\r\n<h2>Rotary Cutter Gearbox vs. Flail Mower Gearbox<\/h2>\r\n<div>\r\n<div>\r\n<h3>Rotary Cutter Gearbox<\/h3>\r\nA rotary cutter gearbox such as the RC-27 sits at the top of the cutter deck and connects directly from the tractor PTO shaft downward to the blade carrier bar through a vertical output shaft. Power flows in a straight mechanical line: PTO shaft to input shaft, bevel gears to output shaft, output shaft to blade hub. There are no belts, pulleys, or clutch packs between the gearbox output and the blades. This direct coupling means every pound-foot of torque the tractor generates is immediately available at the cutting edge, making the gearbox for rotary cutter applications ideal for high-impact brush clearing, thick stump grinding approach cuts, and dense biomass processing where maintaining blade tip speed under sudden load is critical.\r\n\r\nThe heavy swing-away blades mounted on a rotary cutter are designed to deflect away from and then spring back past immovable objects like embedded rocks; when a blade strikes a rock and the blade pivots on its carrier bolt, that shock load still travels back up the output shaft into the gearbox housing, which is why ductile iron construction and robust tapered roller bearings are essential in this design. Operators running 40 HP rotary cutter gearbox setups through 100 HP commercial brush management applications all rely on this direct-drive architecture for its raw torque delivery and simplicity of maintenance.\r\n\r\n<\/div>\r\n<div>\r\n<h3>Flail Mower Gearbox<\/h3>\r\nA flail mower gearbox mounts on the side or top of the mower deck and redirects PTO power not directly downward but sideways into a pulley and belt drive arrangement. The gearbox output shaft drives one or more pulleys, and V-belts or flat belts then carry that rotational energy along to the horizontal rotor tube that carries the flail hammers or Y-knives. This belt drive arrangement introduces a deliberate mechanical compliant link between the gearbox and the cutting rotor. When a flail hammer strikes a rock, root, or other immovable object, the belts slip momentarily rather than transmitting the full peak shock load directly into the gearbox internals.\r\n\r\nThis slip-and-recover action significantly reduces peak impact force on the gearbox bearings and housing, which is why flail mower gearboxes can often be built to a lighter specification than equivalent rotary cutter units. The trade-off is that belts add complexity: they stretch over time and require periodic re-tensioning, they wear and must be replaced as a maintenance item, and they reduce the overall mechanical efficiency of the drive system compared to a direct-gear arrangement. Flail mowers also tend to produce a finer, more uniform chop than rotary cutters, making them the preferred choice for finishing work in orchards, sports fields, and roadside verge tidying where cut quality matters as much as cutting capacity.\r\n\r\n<\/div>\r\n<\/div>\r\n<div>\r\n<table style=\"height: 400px; width: 100%;\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\r\n<thead>\r\n<tr>\r\n<th style=\"text-align: center;\">Feature<\/th>\r\n<th style=\"text-align: center;\">Rotary Cutter Gearbox<\/th>\r\n<th style=\"text-align: center;\">Flail Mower Gearbox<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td style=\"text-align: center;\">Drive Type<\/td>\r\n<td style=\"text-align: center;\">Direct bevel gear, no belts<\/td>\r\n<td style=\"text-align: center;\">Indirect via belt and pulley<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Output Shaft Direction<\/td>\r\n<td style=\"text-align: center;\">Vertical (downward to blade hub)<\/td>\r\n<td style=\"text-align: center;\">Horizontal (to rotor pulley)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Shock Load Handling<\/td>\r\n<td style=\"text-align: center;\">Direct; absorbed by housing and bearings<\/td>\r\n<td style=\"text-align: center;\">Belt slip provides damping<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Drive Efficiency<\/td>\r\n<td style=\"text-align: center;\">Higher (95 to 98%)<\/td>\r\n<td style=\"text-align: center;\">Lower (85 to 92% with belts)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Best Application<\/td>\r\n<td style=\"text-align: center;\">Heavy brush, thick straw, pasture clearing<\/td>\r\n<td style=\"text-align: center;\">Fine finishing, orchards, sports turf<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Maintenance Items<\/td>\r\n<td style=\"text-align: center;\">Oil, seals, bearings<\/td>\r\n<td style=\"text-align: center;\">Oil, seals, bearings, belts, pulleys<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">Cutting Quality<\/td>\r\n<td style=\"text-align: center;\">Coarser chop, high volume<\/td>\r\n<td style=\"text-align: center;\">Finer, more uniform cut<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\">HP Range Suitability<\/td>\r\n<td style=\"text-align: center;\">20 HP to 100+ HP tractors<\/td>\r\n<td style=\"text-align: center;\">Typically 25 HP to 90 HP<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<div>\r\n\r\nIf your primary work involves clearing heavy brush, managing rangeland, processing crop residue, or operating in rough rocky terrain, the RC-27 rotary cutter gearbox is the right choice. Its direct-gear architecture delivers maximum available torque to the blade at all times, its ductile iron housing absorbs impact shock loads that would damage lighter gearboxes, and the simple oil-bath lubrication system makes field maintenance straightforward. If your work is predominantly fine grass finishing, orchard floor management, or roadside tidying where cut uniformity is the priority and shock loads are moderate, a flail mower gearbox with its belt drive compliance may be more appropriate. CMN Transmission manufactures both types and can advise on the correct specification for your specific implement and tractor combination.\r\n\r\n<img class=\"aligncenter wp-image-7874 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/Rotary-Cutter-Gearbox-Parts-2.webp\" alt=\"Rotary Cutter Gearbox Parts\" width=\"800\" height=\"800\" \/>\r\n<h2>Why Choose CMN Transmission's Rotary Cutter Gearboxes?<\/h2>\r\nKorea CMN Transmission Co., Ltd. was established in 2000 and is headquartered in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. With more than 100 factory employees dedicated exclusively to agricultural gearbox R&amp;D, manufacturing, quality control, and after-sales support, CMN has grown from a domestic Korean supplier into a globally recognised name among rotary cutter gearbox manufacturers. The company's export network now covers more than 60 countries including the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, China, India, Thailand, Vietnam, Turkey, Australia, and New Zealand. Annual production capacity exceeds 500,000 gearbox units, giving CMN the scale to maintain consistent in-stock availability even during peak seasonal demand periods when agricultural machinery service windows are shortest.\r\n\r\nCMN's product range spans the full breadth of modern agricultural power transmission: rotary cutter gearboxes, rotary tiller gearboxes, feed mixer gearboxes, rotary mower gearboxes, fertiliser spreader gearboxes, flail mower gearboxes, post hole digger gearboxes, round baler gearboxes, square baler gearboxes, disc mower gearboxes, centre pivot irrigation gearboxes, hydraulic drive gearboxes, silage machine gearboxes, orchard sprayer gearboxes, rotary rake gearboxes, combine harvester gearboxes, grain storage and transportation gearboxes, corn header gearboxes, cutting bar gearboxes, and poultry feeding gearboxes. The total catalog covers nearly one thousand specifications including custom-engineered solutions for OEM partners who require gearboxes tailored to non-standard implement architectures.\r\n\r\nQuality at CMN is not a marketing claim but a verified system. CE product certification, ISO 9001 quality management certification, Environmental Management System certification, and Occupational Health and Safety certification all subject CMN's processes to independent third-party audit. These certifications matter practically for international buyers: CE marking simplifies import compliance into European markets, and ISO 9001 certification is increasingly required as a supplier qualification criterion by large OEM customers and agricultural machinery distributors worldwide.\r\n\r\nWhat truly differentiates CMN Transmission from lower-cost rotary cutter gearbox suppliers is the combination of engineered design, qualified materials, controlled manufacturing processes, and technical support that reaches buyers after the sale. CMN's technical team provides pre-purchase application review, installation guidance, and post-sale failure analysis for warranty claims and fleet troubleshooting. For distributors, OEM partners, and end-user farmers who depend on reliable agricultural gearbox supply to keep their equipment running through seasonal work windows, CMN Transmission has consistently demonstrated the combination of product quality, delivery reliability, and technical support depth that makes a long-term supply relationship valuable.\r\n\r\n<img class=\"aligncenter wp-image-7915 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/0_Rotary-Cutter-Gearbox-Manufacturers.webp\" alt=\"Rotary Cutter Gearbox Manufacturers\" width=\"1200\" height=\"820\" \/>\r\n<h2>Frequently Asked Questions<\/h2>\r\n<strong>Q: Is the CMN RC-27 a direct fit replacement for the Omni RC-27 Gearbox?<\/strong>\r\nA: Yes. The CMN RC-27 is manufactured to the same dimensional specification as the original Omni RC-27 gearbox. The square flange size (6.18 in. \/ 157 mm), bolt hole pattern (6.8 in. \/ 171.5 mm), mounting hole count (4 x 0.67 in. \/ 17 mm), CL to flange dimension (6.4 in. \/ 164 mm), and output shaft spline geometry are all produced to match Omni RC-27 drawings. No deck modifications, adapter plates, or custom driveshaft work are required for a direct swap. We recommend confirming your specific cutter deck model against the published dimension table before ordering to ensure compatibility.\r\n\r\n<strong>Q: What rotary cutter gearbox oil type and quantity does the RC-27 require?<\/strong>\r\nA: The RC-27 requires GL-5 EP 80W-90 gear oil under most operating conditions. In regions with sustained ambient temperatures below minus 15 degrees Celsius, a 75W-90 full synthetic GL-5 oil is recommended for easier cold-start rotation and faster bearing lubrication at startup. The total rotary cutter gearbox oil capacity is 20 oz. (0.59 L). Always fill through the designated fill port until oil begins to weep out, indicating the correct rotary cutter gearbox oil level has been reached. Never use automotive engine oil, hydraulic oil, or grease as substitutes for gear oil in this application.\r\n\r\n<strong>Q: What HP tractor is this gearbox rated for? Does it work for 40 HP, 60 HP, 75 HP, or 90 HP rotary cutter gearbox applications?<\/strong>\r\nA: The RC-27 covers a practical operating range from approximately 20 HP at the lower end through to 90 HP at the higher end, depending on the cutting implement design and actual field load. It is commonly used in 25 HP rotary cutter gearbox and 40 HP rotary cutter gearbox applications on compact and mid-range tractors, and is equally suited to 60 HP rotary cutter gearbox and 75 HP rotary cutter gearbox setups on larger row-crop machines. For 100 HP rotary cutter gearbox requirements, we recommend considering the RC-30 or RC-51 models with higher torque ratings. Contact our technical team with your tractor HP and cutter deck model for specific confirmation.\r\n\r\n<strong>Q: What is the rotary cutter gearbox ratio on the RC-27, and how do I choose between 1:2.5 and 1:2.83?<\/strong>\r\nA: The RC-27 rotary cutter gearbox ratio options are 1:2.5 and 1:2.83. Both ratios reduce the PTO input speed to produce higher torque at the blade hub. The 1:2.5 ratio produces a faster blade tip speed, which is better suited to lighter materials such as grass and thin crop residue where high cutting velocity improves quality and throughput. The 1:2.83 ratio produces a lower blade speed but higher torque output (up to 698 Nm \/ 6,183 lb.-in.), making it the preferred choice for dense brush, thick straw, and high-biomass crops. Please specify your required ratio at the time of ordering, as both are available but cannot be field-changed after assembly.\r\n\r\n<strong>Q: How do I know if my rotary cutter gearbox needs repair or rebuild vs. full replacement?<\/strong>\r\nA: A rotary cutter gearbox repair or rebuild is appropriate when the housing itself is undamaged and failure is limited to worn seals, failed bearings, or a broken gear tooth. In these cases, sourcing the correct rotary cutter gearbox parts and performing an internal rebuild typically costs 40 to 60 percent of a new gearbox price. Full replacement is recommended when the housing is cracked or severely damaged, when multiple internal components have failed simultaneously, or when the cost of rebuild labour exceeds the value of the repaired unit. CMN Transmission supplies individual rotary cutter gearbox parts for the RC-27 including seal kits, bearing sets, and gear assemblies to support both repair and rebuild operations.\r\n\r\n<strong>Q: Where can I find the RC-27 rotary cutter gearbox for sale, and what is the typical lead time?<\/strong>\r\nA: The CMN RC-27 rotary cutter gearbox for sale is available directly through our website and through authorised distributors in the United States, Canada, Australia, Europe, and other major agricultural markets. Standard in-stock units are typically shipped within 3 to 5 business days of order confirmation. International delivery to most destinations takes 8 to 18 business days depending on customs clearance procedures in the destination country. Distributor enquiries and bulk OEM orders are handled separately with negotiated lead times and pricing. Contact our sales team for a shipping estimate to your specific location.\r\n\r\n<strong>Q: Is the RC-27 available through rotary cutter gearbox tractor supply channels?<\/strong>\r\nA: CMN Transmission operates primarily as a direct-supply and distributor-network supplier rather than through mass-market retail chains. While some independent farm supply dealers in key agricultural regions do stock CMN gearbox products, ordering directly from CMN or through our authorised distributors ensures you receive the current production specification, full technical support, and warranty coverage. If your local tractor supply or farm co-op does not stock the CMN RC-27, we can ship directly to your address or to a local freight terminal for collection. Contact us for distributor referrals in your region.\r\n\r\n<strong>Q: How often should I change the rotary cutter gearbox oil, and what happens if I skip oil changes?<\/strong>\r\nA: The recommended rotary cutter gearbox oil change interval for the RC-27 is every 100 operating hours or once per season, whichever occurs first. The first oil change on a new or rebuilt gearbox should be performed at 50 hours to remove any metal particles from the break-in wear period. Skipping oil changes allows oxidised oil and accumulated metallic debris to act as an abrasive compound accelerating gear tooth and bearing surface wear. In practical terms, an operator who runs 200 hours per season without an oil change will typically see bearing noise develop within 2 to 3 seasons, whereas a properly maintained unit can exceed 5,000 hours of service life before requiring internal rebuild work.\r\n\r\n<strong>Q: Can one RC-27 gearbox be used across different rotary cutter brands and models?<\/strong>\r\nA: The RC-27 fits any rotary cutter implement that was originally designed around the Omni RC-27 gearbox specification. Because Omni Gear established the RC-27 as a widely adopted industry standard, numerous cutter brands including Bush Hog, Rhino, Land Pride, Woods, and others have used RC-27 compatible mounting configurations across many product generations. Compatibility depends on matching the flange dimensions, bolt pattern, and output shaft geometry, not the brand name on the deck. Use our published dimension tables to verify your implement's actual mounting specifications against the RC-27 flange data before ordering, especially for older implements where original gearbox sourcing records may not be available.\r\n\r\n<strong>Q: What certifications does CMN Transmission hold for this agricultural gearbox?<\/strong>\r\nA: CMN Transmission holds CE certification confirming compliance with applicable European machinery safety directives, ISO 9001 quality management system certification, Environmental Management System certification, and Occupational Health and Safety certification. These certifications demonstrate that both the product design and the manufacturing process meet internationally recognised standards. CE marking is particularly relevant for customers importing into EU member states and the United Kingdom, as it simplifies customs clearance and confirms the product meets EU machinery directive safety requirements. Documentation copies can be provided on request for import compliance or contractor qualification purposes.\r\n\r\n<img class=\"aligncenter wp-image-7914 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-27-Rotary-Cutter-Gearbox-2.webp\" alt=\"RC-27 Rotary Cutter Gearbox\" width=\"1000\" height=\"1000\" \/>\r\n<h2>Customer Reviews<\/h2>\r\n<p data-path-to-node=\"1\"><b data-path-to-node=\"1\" data-index-in-node=\"0\">James Whitfield, Cattle Rancher, United States<\/b>\r\n\"Been running this RC-27 gearbox on a 15-foot Bush Hog rotary cutter behind a 75 HP tractor for two full seasons now. The original Omni unit finally gave out after years of service and this CMN replacement dropped right in with no modifications at all. Same bolt pattern, same flange dimensions, same output shaft spline. I was skeptical buying a replacement off the internet but the build quality is genuinely impressive, the housing is solid, seals are tight, and it runs cooler than the old one did in its last year. Changed the oil at 100 hours like they recommend and it looked clean. Real happy with this purchase.\"<\/p>\r\n<p data-path-to-node=\"2\"><b data-path-to-node=\"2\" data-index-in-node=\"0\">Craig Donnelly, Sheep Station, Australia<\/b>\r\n\"We run several rotary slashers on our sheep property and gearbox failures in the middle of summer are a real problem for us. Ordered two RC-27 units from CMN Transmission as spares to keep on the shelf. Shipping to Australia took 12 days which was faster than I expected, and the packaging was very good, no damage at all. Installed the first one last month to replace a failed unit and it went in without any fuss. Torque rating is well within what our 60 HP tractors need. Good quality rotary cutter gearbox parts available from the supplier too which is a bonus.\"<\/p>\r\n<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"0\">Diego Fuentes Ramirez, Road Maintenance, Mexico\r\n<\/b> \"Excellent gearbox for a rotary cutter. I bought it as a replacement for equipment we use in rural road maintenance in the northern region. The 1:2.83 ratio is perfect for the dense brush we find here. It has been installed for 6 months without problems, the seals haven't leaked at all. CMN's customer service was very attentive; they confirmed compatibility with my cutter before placing the order. Highly recommended for anyone looking for a quality agricultural gearbox at a good price.\"<\/p>\r\n<p data-path-to-node=\"4\"><b data-path-to-node=\"4\" data-index-in-node=\"0\">Martin Okafor, Agricultural Parts Distributor, United Kingdom<\/b>\r\n\"We distribute agricultural machinery parts across the UK and added the CMN RC-27 to our stock this year as a direct replacement offering for customers running Omni gearboxes. Initial batch of 20 units sold out faster than anticipated, mostly to contractors running finishing mowers and rotary cutters in the 40 HP to 90 HP tractor category. End user feedback has been positive overall. One minor point: the installation instructions could be more detailed for first-time fitters. Reordered 30 units and lead time was kept as promised. Reliable rotary cutter gearbox suppliers are hard to find, CMN is earning that status.\"<\/p>\r\n<p data-path-to-node=\"5\"><b data-path-to-node=\"5\" data-index-in-node=\"0\">Thierry Marchand, Mixed Farm, France\r\n<\/b> \"I have now been using this CMN gearbox on my rotary mower towed by a 45 HP Fendt for three years. Frankly, I am very satisfied. The manufacturing quality is serious, the triple-lip seals hold the oil well even after working in wet meadows all summer. The price is reasonable compared to original parts. I contacted the technical service before buying to verify compatibility and they responded quickly with precise technical data. I recommend it without hesitation to replace an end-of-life gearbox for rotary cutter.\"<\/p>\r\n<p data-path-to-node=\"6\"><b data-path-to-node=\"6\" data-index-in-node=\"0\">Roberto Alves Nogueira, Soybean Farm, Brazil\r\n<\/b> \"We operate a soybean and corn farming operation in Mato Grosso and maintain 8 rotary cutters for stubble management across our planting cycles. The RC-27 replacement gearbox from CMN has become our standard spec for rebuilds. We have fitted 5 units over 18 months and not one has given us trouble. The torque output handles our dense soy stubble rows without stalling even at our typical field operating speed. Lead time from Korea to Brazil is around 3 weeks which we manage by keeping two units in stock. The price point makes this easy to justify as a planned maintenance item rather than an emergency spend.\"<\/p>\r\n<p data-path-to-node=\"7\"><b data-path-to-node=\"7\" data-index-in-node=\"0\">Klaus Hofmann, Agricultural Contractor, Germany<\/b>\r\n\"I am an agricultural contractor and installed this gearbox as a replacement for our worn-out Omni gearbox on a rotary mower with a 90 HP tractor. Fits perfectly, all connection dimensions are exactly right. Runs very smoothly, no noise, no play in the drive shaft. Performed an oil change after 50 hours as described in the manual, the oil was clean. The gearbox housing makes a solid impression, significantly heavier than cheap replicas I have seen elsewhere. Fast delivery to Germany, customs clearance coordinated flawlessly by the shipper. Clear purchase recommendation.\"<\/p>\r\n<p data-path-to-node=\"8\"><b data-path-to-node=\"8\" data-index-in-node=\"0\">Paul Leblanc, Apple Orchard, Canada\r\n<\/b> \"I ordered the RC-27 for my custom-built orchard mower project in Ontario. Finding a replacement gearbox for rotary cutter applications that fits our modified deck dimensions was difficult until I found CMN. I called their technical line before ordering and the engineer confirmed the 6.18 inch square flange and 6.4 inch CL to flange dimension would work for our application. Unit arrived in 9 business days from Korea. Very happy with the build. Triple lip seal detail is clearly better than the budget Chinese units I tried before. This is a gearbox built to last. Will be ordering a second unit for our other orchard machine.\"<\/p>\r\n<p data-path-to-node=\"9\"><b data-path-to-node=\"9\" data-index-in-node=\"0\">Marco Brambilla, Forage Crop, Italy<\/b>\r\n\"We are a farm in Piedmont with about 80 hectares of forage and we replaced the original gearbox on one of our rotary mowers with the CMN RC-27 model. The build quality is excellent, the ductile iron housing is very robust. We then did a rotary cutter gearbox rebuild on another machine using spare parts also ordered from CMN. The after-sales service was excellent; they sent us the detailed technical documentation we needed for the job. Delivery to Italy in about 15 days. Recommended product.\"<\/p>\r\n\r\n<\/div>\r\n<\/div>","_et_gb_content_width":""},"product_brand":[],"product_cat":[301],"product_tag":[303,302,306,304,307,305,308],"class_list":{"0":"post-7911","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-rotary-cutter-gearbox","7":"product_tag-gearbox-for-rotary-cutter","8":"product_tag-rotary-cutter-gearbox","9":"product_tag-rotary-cutter-gearbox-for-sale","10":"product_tag-rotary-cutter-gearbox-manufacturers","11":"product_tag-rotary-cutter-gearbox-ratio","12":"product_tag-rotary-cutter-gearbox-suppliers","13":"product_tag-rotary-mower-gearbox","15":"first","16":"instock","17":"shipping-taxable","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/product\/7911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/comments?post=7911"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/media\/7841"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/media?parent=7911"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/product_brand?post=7911"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/product_cat?post=7911"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/pt\/wp-json\/wp\/v2\/product_tag?post=7911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}