{"id":7967,"date":"2026-09-07T07:13:27","date_gmt":"2026-09-07T07:13:27","guid":{"rendered":"https:\/\/korea-transmission.com\/?post_type=product&#038;p=7967"},"modified":"2026-09-07T08:35:59","modified_gmt":"2026-09-07T08:35:59","slug":"rc-145-rotary-cutter-gearbox-replacement-for-omni-rc-145-gearbox","status":"publish","type":"product","link":"https:\/\/korea-transmission.com\/es\/producto\/rc-145-rotary-cutter-gearbox-replacement-for-omni-rc-145-gearbox\/","title":{"rendered":"Caja de engranajes de repuesto para cortadora rotativa RC-145 Omni RC-145"},"content":{"rendered":"<p>The RC-145 Rotary Cutter Gearbox Replacement for Omni RC-145 Gearbox is a heavy-duty agricultural gearbox engineered specifically for high-demand cutting machinery in the farming and land-management industries. Designed as a direct drop-in replacement for the OEM Omni RC-145 unit, this rotary cutter gearbox drives rotary knives and cutting decks for grass cutting, straw crushing, and brush clearing operations across a wide range of field conditions. Its bevel-gear architecture and triple-lip spring-loaded seals allow it to operate reliably in muddy paddocks, roadside ditches, and wetland areas where conventional drive units fail prematurely. With an HP rating spanning 71 to 181 HP and five selectable gear ratios, the RC-145 is equally at home on compact utility tractors and large row-crop machines, making it one of the most versatile gearboxes for rotary cutters available in the replacement market today.<\/p>\n<p>En esencia, el RC-145 convierte la entrada de alta velocidad de la toma de fuerza (PTO), t\u00edpicamente de 540 o 1000 RPM, del eje de toma de fuerza del tractor en una salida de baja velocidad y alto par, adecuada para el funcionamiento de la cuchilla rotativa. El conjunto de engranajes proporciona hasta 2252 Nm (19 950 lb-in) de par, manteniendo una potencia constante incluso cuando la carga de la cuchilla fluct\u00faa bruscamente, como al cortar paja densa, maleza espesa o arbustos le\u00f1osos. La capacidad de m\u00faltiples relaciones (1,21:1, 1:1, 1:1,21, 1:1,46 y 1:1,92) permite a los operadores ajustar con precisi\u00f3n la velocidad de la cuchilla para adaptarla a la densidad del cultivo y al terreno, desde praderas abiertas y llanas hasta laderas empinadas y m\u00e1rgenes de humedales saturados. Con bridas de montaje est\u00e1ndar ISO y una capacidad de aceite de 1,8 L, la unidad permite una instalaci\u00f3n r\u00e1pida en campo y un mantenimiento programado sencillo, minimizando el tiempo de inactividad durante las temporadas de corte m\u00e1s intensas. Se trata de una soluci\u00f3n fiable que se utiliza en segadoras de acabado, cortadoras rotativas y desbrozadoras rotativas en todo el mundo.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7851 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-145-Rotary-Cutter-Gearbox.webp\" alt=\"Caja de engranajes para cortadora rotativa RC-145\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-145-Rotary-Cutter-Gearbox.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-145-Rotary-Cutter-Gearbox-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/p>\n<h2>Especificaciones del producto<\/h2>\n<table style=\"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;\">Caja de cambios RC-145<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Clasificaci\u00f3n HP<\/td>\n<td style=\"text-align: center;\">71 \u2013 181 HP<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Esfuerzo de torsi\u00f3n:<\/td>\n<td style=\"text-align: center;\">7.117 \u2013 19.950 libras-pulg.<br \/>\n(803 \u2013 2.252 Nm.)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Proporciones:<\/td>\n<td style=\"text-align: center;\">1.21:1, 1:1, 1:1.21, 1:1.46, 1:1.92<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Tipo de engranaje:<\/td>\n<td style=\"text-align: center;\">Bisel<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Tipo de sello:<\/td>\n<td style=\"text-align: center;\">Triple labio con resorte<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Tipo de rodamiento:<\/td>\n<td style=\"text-align: center;\">Rodillo c\u00f3nico<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Capacidad de petr\u00f3leo:<\/td>\n<td style=\"text-align: center;\">60 onzas.<br \/>\n(1,8 L)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Peso:<\/td>\n<td style=\"text-align: center;\">\u00a0110 lbs.<br \/>\n(50 kg)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Aplicaciones:<\/td>\n<td style=\"text-align: center;\">Cortadoras de acabado<br \/>\nCortadoras rotativas<br \/>\nDesbrozadoras rotativas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>RC-145 Rotary Cutter Gearbox Dimensions<\/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\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" 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\" alt=\"Dimensiones de la caja de engranajes de la cortadora rotativa\" width=\"1200\" height=\"600\" \/><\/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\">Modelo<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Peso m\u00e1ximo de la unidad<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">CL a trav\u00e9s del Cap A<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">CL a la brida B<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Brida a piloto de cubo C<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Di\u00e1metro del piloto del cubo H<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Di\u00e1metro de la brida D1<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Patr\u00f3n de orificios para pernos E1<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Orificios de montaje F1<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Brida cuadrada de tama\u00f1o D2<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Patr\u00f3n de orificios para pernos E2<\/th>\n<th style=\"text-align: center;\" colspan=\"2\">Orificios de montaje F2<\/th>\n<\/tr>\n<tr>\n<th style=\"text-align: center;\">libra<\/th>\n<th style=\"text-align: center;\">kg<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/th>\n<th style=\"text-align: center;\">en<\/th>\n<th style=\"text-align: center;\">mm<\/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>Key Benefits of RC-145 Rotary Cutter Gearbox<\/h2>\n<p>1. Tractor PTO Direct Drive Compatibility<br \/>\nThe RC-145 connects directly to the tractor PTO shaft via standard 1-3\/8 inch or 1-3\/4 inch spline configurations, supporting both 540 RPM and 1,000 RPM inputs. Quick-change couplings simplify hitching and unhitching, so operators can swap implements in the field without tools, reducing setup time across mixed-use operations and improving daily productivity on large properties.<\/p>\n<p>2. Outstanding Durability and Environmental Protection<br \/>\nThe housing is produced from high-strength ductile iron with a red oxide primer finish and optional additional coatings for extreme corrosion environments. Triple-lip spring-loaded seals rated to IP67-equivalent protection prevent mud, water, crop sap, and fine abrasive dust from infiltrating the gear chamber. This sealed-environment approach extends bearing and gear service life substantially compared to older single-lip designs common in the replacement gearbox market.<\/p>\n<p>3. Multiple Speed Ratios Flexibility for Variable Crop<br \/>\nWith five available <a href=\"https:\/\/korea-transmission.com\/es\/rotary-cutter-gearbox\/\"><strong>caja de engranajes de cortadora rotativa<\/strong><\/a> ratios (1.21:1, 1:1, 1:1.21, 1:1.46, and 1:1.92), the RC-145 can be configured to optimize blade speed for the specific task at hand, from high-speed finish-cut grass on level turf to heavy-torque brush clearing on steep slopes or through dense standing crop residue. This ratio flexibility makes a single gearbox model suitable for operations that would otherwise require separate units for each application type.<\/p>\n<p>4. Floating Design for Superior Terrain Adaptability<br \/>\nA floating gearbox design lets the cutting deck follow natural ground contours automatically, raising and lowering as the terrain undulates without operator input. This self-leveling action keeps blade-to-ground clearance consistent, preventing costly blade collisions with embedded stones, tree roots, or irrigation hardware. It is particularly valuable on hill paddocks, uneven orchards, and rough roadside verges where ground conditions change constantly.<\/p>\n<p>5. Field-Accessible Maintenance Design<br \/>\nAn externally located oil fill port and drain valve allow lubrication top-ups and full oil changes to be completed without removing the gearbox from the machine. This is critical when checking the rotary cutter gearbox oil level mid-season. Selected configurations also accommodate maintenance-free sealed bearings, further reducing scheduled service intervals and cutting the total labour cost of keeping the unit in peak condition throughout a demanding harvest period.<\/p>\n<p>6. Integrated Overload Safety Protection<br \/>\nAn integrated overload clutch or shear bolt mechanism instantly interrupts power transfer the moment blade jamming or sudden overload is detected. This cuts off peak torque spikes before they can propagate back through the driveline to the tractor transmission, protecting both the gearbox and the host vehicle from expensive secondary damage. On models equipped with shock-absorber buffers, impact energy from blade strikes against rocks or stumps is further attenuated at the source.<\/p>\n<p>7. Direct OEM-Compatible Replacement Fit<br \/>\nManufactured to match all critical mounting dimensions of the original Omni RC-145, this replacement gearbox for rotary cutter installs without modification to the existing deck frame, driveline, or blade carrier. Bolt-hole patterns, flange diameter (260 mm), and hub pilot geometry are all held to OEM specification, so experienced farm mechanics can complete the swap in a single working session without specialist alignment tools or custom adapters.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7851 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-145-Rotary-Cutter-Gearbox.webp\" alt=\"Caja de engranajes para cortadora rotativa RC-145\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-145-Rotary-Cutter-Gearbox.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-145-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-7967-1\" 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>Principio de funcionamiento<\/h2>\n<p>The RC-145 is a precision bevel-gear transmission unit that sits between the tractor PTO shaft and the blade spindle of a rotary cutting deck. Power flow begins at the input shaft, which connects to the tractor PTO via a driveline with a universal joint at each end. The PTO delivers rotational energy at a standard 540 RPM or 1,000 RPM, depending on the tractor model and operator selection. The input shaft passes this rotation directly into the gearbox housing, where it engages the bevel gear set. Bevel gears are conically shaped gears whose axes intersect at a right angle, so they can redirect torque by 90 degrees, converting horizontal shaft rotation into the vertical output axis needed to spin a horizontal cutting blade below the deck.<\/p>\n<p>Inside the housing, the bevel pinion (attached to the input shaft) meshes with the ring gear (attached to the output shaft). The ratio between the number of teeth on the pinion and the ring gear determines whether the unit speeds up, slows down, or maintains the same rotational speed through the gearbox. The RC-145 offers five selectable rotary cutter gearbox ratios, from 1.21:1 step-down for heavy-torque brush cutting to 1:1.92 step-up for high-speed finishing applications. This makes the unit adaptable to a much wider range of crop types and terrain profiles than fixed-ratio competitors.<\/p>\n<p>Torque output scales with the selected ratio, ranging from 803 Nm at low load to 2,252 Nm at peak demand. Tapered roller bearings on both input and output shafts absorb the radial and axial loads generated during gear mesh and blade impact events, maintaining precise shaft alignment under conditions that would cause premature failure in units fitted with standard deep-groove ball bearings. An oil-bath lubrication system submerges the lower portion of the bevel gear mesh in gear oil, with gearcase porting ensuring that oil flows continuously to the lower bearings during operation, preventing dry-running even when the gearbox is tilted on hillside terrain.<\/p>\n<p>Triple-lip spring-loaded seals on both shafts keep contamination out of the oil bath and prevent oil loss through the rotating shaft exits, which are the most common leakage points on field-used gearboxes. A pressure relief plug vents internal pressure caused by thermal expansion of the oil during heavy-duty operation, preventing seal blowout without allowing contamination ingress. For operators in extreme-duty applications, an optional labyrinth seal can be installed over the output shaft to add a second layer of contamination exclusion.<\/p>\n<p>The complete power path, from PTO input through bevel gear mesh to blade spindle output, is engineered to sustain the variable shock loading typical of rotary mower gearbox service. When a blade strikes a hidden rock or a dense clump of woody vegetation, the torque spike travels backward through the output shaft and into the gear mesh. Shear bolt or slip clutch overload protection (depending on configuration) intercepts this spike before it can cause bevel gear tooth fracture or input shaft bearing failure. This protection mechanism is one of the most important design features distinguishing a purpose-built agricultural gearbox from a general industrial unit adapted for field use.<\/p>\n<p>Correct rotary cutter gearbox oil selection and scheduled oil changes at the manufacturer-recommended intervals are the single most important maintenance actions for preserving gear and bearing life. The 1.8 L oil bath is accessible via the external fill port and drain valve, making field-level maintenance practical without removing the unit from the machine. Operators using 40 hp rotary cutter gearbox through 100 hp rotary cutter gearbox applications should verify that the oil grade used matches the operating temperature range expected in their region, as viscosity breakdown accelerates gear wear in hot-climate high-load conditions.<\/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 de la caja de engranajes de la cortadora rotativa\" 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>RC-145 Rotary Cutter Gearbox Applications<\/h2>\n<div>\n<h3>Despeje de arbustos y zarzas<\/h3>\n<p>For clearing established brush along orchard borders, woodland margins, and fencelines, the RC-145 delivers the elevated torque required to sever woody stems up to several centimetres in diameter without stalling. High-torque output ratios allow the operator to reduce blade speed while maximizing torque, protecting both the cutting blades and the gearbox during extended encounters with hard, dry-season bramble canes or mature shrub growth that would overwhelm lower-rated\u00a0finishing mower gearbox\u00a0units.<\/p>\n<h3>Corte de c\u00e9sped y trituraci\u00f3n de paja<\/h3>\n<p>The RC-145 drives rotary blades at precisely tuned speeds to cut pasture grass, standing straw, and cover crops such as cornstalks or cereal residues. Blade RPM can be adjusted by selecting an appropriate gear ratio to control chop length: coarser cuts return organic matter to the soil surface more quickly, while finer crushing produces material suitable for feed mixing or bedding. This dual-purpose capability makes the RC-145 a standard choice for arable farms managing post-harvest residue and livestock operators maintaining pasture quality simultaneously.<\/p>\n<\/div>\n<div>\n<h3>Preparaci\u00f3n de terrenos agr\u00edcolas y tratamiento de rastrojos<\/h3>\n<p>Combined with disc or dumping blade configurations, the RC-145 efficiently shreds and levels rice stubble, wheat stubble, and sunflower stalks ahead of primary tillage or direct seeding operations. Rapid stubble destruction reduces pest and disease pressure by eliminating overwintering sites in crop residue, while simultaneously incorporating organic matter that improves soil structure over successive seasons. The gearbox maintains consistent blade speed even as stubble density varies across a paddock, ensuring uniform residue distribution behind the cutter.<\/p>\n<\/div>\n<div>\n<h3>Orchard and Vineyard Maintenance<\/h3>\n<p>The low-profile housing of the RC-145 suits orchard and vineyard machinery, where vertical clearance under tree canopies and vine trellises is restricted. The compact form factor allows the cutting deck to penetrate deeply into row middles, controlling inter-row weed growth and volunteer cover crops without damaging low-hanging branches or irrigation drip lines. The\u00a0rotary slasher gearbox\u00a0capability allows repeated passes at high travel speed during peak spring and summer growth flushes without overheating the unit.<\/p>\n<\/div>\n<div>\n<h3>Control de la vegetaci\u00f3n en los m\u00e1rgenes de las carreteras y en las franjas de derecho de v\u00eda<\/h3>\n<p>Los departamentos de carreteras y los contratistas de mantenimiento de corredores de servicios p\u00fablicos conf\u00edan en cajas de engranajes agr\u00edcolas de alta resistencia como la RC-145 para los programas estacionales de corte de arcenes. Su resistencia superior a los impactos permite manejar los escombros impredecibles que se encuentran en los m\u00e1rgenes de las carreteras, incluidos fragmentos de alambre de acero, madera desechada y grava incrustada, sin las catastr\u00f3ficas fracturas de engranajes que inutilizan las unidades de menor potencia. Su amplio rango de potencia (de 71 a 181 CV) se adapta tanto a tractores de servicios p\u00fablicos municipales como a m\u00e1quinas espec\u00edficas para el mantenimiento de carreteras utilizadas en los arcenes de autopistas de alta velocidad.<\/p>\n<\/div>\n<div>\n<h3>Levee and Wetland Maintenance<\/h3>\n<p>Flood control and waterway management authorities operate rotary cutters fitted with the RC-145 on earthen levee banks, drainage channel margins, and constructed wetland edges. The triple-lip sealed bearing system and corrosion-resistant housing coating maintain reliable operation in waterlogged conditions where moisture ingress into unsealed gearboxes causes rapid deterioration of bearing raceways and gear tooth surfaces. Consistent power delivery on sloped levee faces is achieved by selecting the appropriate ratio for hillside torque demand.<\/p>\n<\/div>\n<div>\n<h3>Forestry Mulching and Land Conversion<\/h3>\n<p>La limpieza inicial de terrenos para nuevos cultivos, desarrollo urban\u00edstico o restauraci\u00f3n de h\u00e1bitats de conservaci\u00f3n implica cortar vegetaci\u00f3n mucho m\u00e1s densa y dura que los residuos agr\u00edcolas habituales. Las cortadoras rotativas de alta potencia, como la RC-145 de 75 CV o m\u00e1s, se utilizan para procesar vegetaci\u00f3n secundaria ligera, matorrales densos y rebrotes le\u00f1osos de peque\u00f1o di\u00e1metro de forma r\u00e1pida y rentable en comparaci\u00f3n con las alternativas de limpieza manual. Adem\u00e1s, el sistema de protecci\u00f3n contra sobrecargas de la caja de engranajes evita fallos catastr\u00f3ficos durante las primeras pasadas en terrenos desconocidos.<\/p>\n<h3>Municipal Parks Management<\/h3>\n<p>Los departamentos de parques y recreaci\u00f3n utilizan el RC-145 para el mantenimiento de \u00e1reas irregulares alrededor de campos deportivos, senderos p\u00fablicos y cementerios conmemorativos, donde no se requieren est\u00e1ndares de c\u00e9sped impecables, pero s\u00ed una altura de corte uniforme y presentable. Su amplio rango de potencia operativa permite su uso en tractores utilitarios compactos en entornos de parques con espacio limitado o en m\u00e1quinas m\u00e1s grandes que cubren extensas \u00e1reas de reserva recreativa en un solo d\u00eda, brindando la eficiencia necesaria para los departamentos de obras p\u00fablicas que operan con presupuestos ajustados para el mantenimiento estacional.<\/p>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7899 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-4.webp\" alt=\"Aplicaciones de la caja de engranajes para cortadoras rotativas\" width=\"1200\" height=\"820\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-4.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-4-980x670.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-4-480x328.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>How to Correctly Replace the RC-145 Gearbox<\/h2>\n<p>1. Disconnect the PTO Driveline and Relieve All Stored Energy<br \/>\nBefore touching any fasteners, park the tractor on level ground, engage the parking brake, shut off the engine, and wait for all rotating components to come to a complete stop. Disconnect the PTO driveline at the tractor end and support the free shaft with a stand or strap to prevent it from dropping. Remove the key from the ignition and, where possible, lock out the PTO engagement mechanism. Working on a gearbox with residual driveline tension present is a leading cause of serious injury during rotary cutter gearbox replacement operations.<\/p>\n<p>2. Drain the Gear Oil from the Existing Unit<br \/>\nPosition a clean drain pan of sufficient volume beneath the gearbox drain valve. Remove the drain plug slowly, allowing the old oil to flow out completely. Inspect the drained oil for metal particles, which indicate internal gear or bearing damage. Dispose of used rotary cutter gearbox oil in accordance with local environmental regulations. Draining before removal prevents spillage during handling and keeps the working area clean for accurate inspection of the housing and mounting surfaces.<\/p>\n<p>3. Remove the Blade Assembly and Output Shaft Connection<br \/>\nSupport the cutting blade carrier safely before removing the output shaft retaining bolt or snap ring. Mark the blade carrier orientation relative to the output shaft spline before disassembly so it can be reinstalled in the same position, preserving balance. Blade carrier hubs can seize onto output shafts after extended service, so apply penetrating oil to the hub-to-shaft interface at least 15 minutes before attempting removal, and use a purpose-made hub puller rather than striking the hub directly.<\/p>\n<p>4. Unbolt the Gearbox from the Deck Frame<br \/>\nThe RC-145 is secured to the cutter deck via six flange mounting bolts arranged on a 203.2 mm bolt circle. Support the gearbox weight with a floor jack or hoist before removing the final bolts, since the 50 kg housing will drop suddenly once the last fastener is clear. Inspect the mounting face on the deck for corrosion, cracks, or deformed bolt holes before installing the replacement unit, as a distorted mounting surface will induce misalignment stress into the new gearbox from the first operating hour.<\/p>\n<p>5. Install and Torque the Replacement Unit<br \/>\nColoque el nuevo RC-145 en su posici\u00f3n, alineando el eje del cubo (96,0 mm de di\u00e1metro) con el orificio gu\u00eda del bastidor y los seis orificios para pernos con el patr\u00f3n de la brida. Aplique compuesto fijador de roscas a los pernos de montaje y apri\u00e9telos en forma de estrella seg\u00fan el par de apriete especificado en la gu\u00eda de instalaci\u00f3n del fabricante. No sustituya los pernos de grado 8 por sujetadores de grado 5, ya que el uso de herrajes de montaje de baja resistencia es una causa com\u00fan de falla prematura de la superficie de montaje de la caja de engranajes en aplicaciones de cortadoras rotativas con alta vibraci\u00f3n.<\/p>\n<p>6. Fill to Correct Oil Level and Check for Leaks<br \/>\nFill the gearbox to the specified level (1.8 L \/ 60 oz.) through the external fill port using the grade of gear oil recommended in the CMN Transmission specification sheet for the expected operating temperature. Replace the fill cap securely. Run the unit at low PTO speed for five minutes, then shut down and inspect all seal points, the fill cap, drain plug, and flange gasket face for any weeping or active leaks. Correct any leaks before returning the machine to full field-speed operation.<\/p>\n<p>7. Perform a Loaded Break-In Run and Retorque Fasteners<br \/>\nAllow the new gearbox to run under graduated load, starting at 50% of normal cutting speed for the first operating hour, then increasing to full speed and load for the next two hours. After the break-in period is complete, shut down and retorque all mounting bolts to specification while the housing is still warm, as thermal cycling causes fastener relaxation during the first operating session. Check the oil level again after the break-in run and top up as required before returning the machine to standard daily operation.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7840 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-20-Rotary-Cutter-Gearbox.webp\" alt=\"Caja de engranajes para cortadora rotativa RC-20\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-20-Rotary-Cutter-Gearbox.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/RC-20-Rotary-Cutter-Gearbox-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/p>\n<h2>Precauciones de instalaci\u00f3n<\/h2>\n<p><strong>Verify Compatibility Before Installation<\/strong><br \/>\nConfirme que las dimensiones del RC-145, espec\u00edficamente el di\u00e1metro del eje del cubo (96,0 mm), el di\u00e1metro de la brida (260 mm) y el patr\u00f3n de pernos de seis orificios (BCD de 203,2 mm), coincidan con el receptor de montaje en cubierta existente. Incluso entre las unidades descritas como de clase RC-145, las tolerancias dimensionales var\u00edan entre fabricantes, y una brida mal ajustada provocar\u00e1 esfuerzos de flexi\u00f3n en la carcasa desde la primera hora de funcionamiento, acelerando la falla de los cojinetes y sellos m\u00e1s all\u00e1 de la vida \u00fatil nominal de la unidad.<\/p>\n<p><strong>Use Correct Fasteners and Thread Treatment<\/strong><br \/>\nAll mounting bolts must be Grade 8 (SAE) or property class 10.9 (metric) minimum. Apply medium-strength thread-locking compound to the bolt threads and torque to specification in a cross-pattern sequence. In high-vibration rotary cutter applications, self-locking fasteners or hardened flat washers should be added beneath the bolt heads if not already specified, as fastener backing-off under vibration is a common cause of housing-to-deck joint failure and consequent gearbox damage.<\/p>\n<p><strong>Align the Driveline to Minimize U-Joint Working Angle<\/strong><br \/>\nThe PTO driveline connecting the tractor output shaft to the gearbox input should be assembled so that the universal joints operate at equal and opposite angles, ideally below 6 degrees each when the implement is in the working position. Excessive or unequal U-joint angles generate cyclical vibration that loads the input shaft bearings asymmetrically, accelerating wear and producing the characteristic noise associated with failing gearbox for rotary cutter input assemblies before the gear teeth themselves are worn.<\/p>\n<p><strong>Fill Oil Before First Start-Up<\/strong><br \/>\nNew replacement gearboxes are shipped without oil or with only a light preservative coating on internal surfaces. Always fill to the specified 1.8 L oil capacity with the recommended gear oil grade before connecting the PTO driveline and starting the tractor. Running the unit even briefly without oil present will damage bearing surfaces and gear tooth contact patterns in ways that cannot be reversed by subsequent correct lubrication, significantly shortening the expected service life of the replacement unit from the first day of use.<\/p>\n<p><strong>Inspect the Shear Bolt or Slip Clutch Overload Device<\/strong><br \/>\nBefore returning the machine to field service, verify that the overload protection device, whether a shear bolt collar on the driveline or a slip clutch in the PTO coupler assembly, is correctly configured and set to the torque value recommended for the RC-145 HP rating. An overload device set too tight will allow excessive shock torque into the gearbox during blade strikes; one set too loose will slip under normal cutting load, causing power loss and premature clutch surface wear without providing any meaningful protection to the gearbox.<\/p>\n<p><strong>Do Not Exceed the Rated HP Range<\/strong><br \/>\nLa RC-145 tiene una potencia nominal de entrada continua m\u00e1xima de 181 HP. Conectar la unidad a un tractor que desarrolle m\u00e1s potencia en la toma de fuerza (TDF) o hacer funcionar el tractor a su m\u00e1xima potencia nominal en condiciones que produzcan un par m\u00e1ximo sostenido, conlleva el riesgo de sobrecargar los flancos de los engranajes c\u00f3nicos y los cojinetes del eje de entrada m\u00e1s all\u00e1 de su capacidad de dise\u00f1o. Al adquirir una caja de engranajes de repuesto para una desbrozadora rotativa, verifique siempre la potencia real de la TDF del tractor con respecto a la potencia nominal de la caja de engranajes antes de la instalaci\u00f3n, dejando un margen de seguridad m\u00ednimo de 15% por debajo del m\u00e1ximo indicado.<\/p>\n<p><strong>Schedule the First Oil Change at 50 Operating Hours<\/strong><br \/>\nDuring the break-in period, fine metallic particles from gear tooth and bearing surface conditioning accumulate in the oil bath at a much higher rate than during steady-state operation. Changing the oil at 50 hours removes this initial wear debris before it can act as an abrasive agent on the gear flanks and bearing raceways it is meant to lubricate. After this first early change, follow the standard oil-change interval specified in the CMN Transmission service manual, typically every 250 to 500 operating hours depending on operating conditions and oil grade used.<\/p>\n<p><strong>Store Unused Units Correctly if Delayed Installation<\/strong><br \/>\nIf the replacement RC-145 will not be installed immediately after delivery, store it in a dry, temperature-stable environment with all port plugs installed and oil seals protected from UV exposure and chemical contact. Rotate the input shaft by hand through several full turns every 30 days to redistribute the internal preservative coating and prevent static corrosion on bearing raceways. Do not store the unit on its output shaft or on the flange face, as point-contact storage loads can deform seals and create flat spots on bearing rollers before the unit has entered service.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7896 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-1.webp\" alt=\"Aplicaciones de la caja de engranajes para cortadoras rotativas\" width=\"1200\" height=\"820\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-1.webp 1200w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-1-980x670.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/08\/0_Rotary-Cutter-Gearbox-Applications-1-480x328.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>Caja de engranajes de la cortadora rotativa y eje de transmisi\u00f3n de la toma de fuerza<\/h2>\n<p>A rotary cutter gearbox and PTO shaft work as a paired system to transfer mechanical power from the tractor engine to the cutting blades on the mower deck. The Power Take-Off (PTO) shaft is a mechanical output driven directly by the tractor engine, typically through the transmission. It protrudes from the rear of the tractor and rotates at a standardized speed, either 540 RPM for lighter tractors and implements or 1,000 RPM for larger, higher-output machines. Agricultural machinery manufacturers around the world design their implement input requirements around these two standardized PTO speeds, allowing a wide range of implements, including rotary cutters, fertilizer spreaders, and balers, to be interchanged between compatible tractors without mechanical modification.<\/p>\n<p>El eje de transmisi\u00f3n que conecta la toma de fuerza del tractor con el eje de entrada del implemento es un tubo de torsi\u00f3n telesc\u00f3pico con juntas universales en ambos extremos. Este conjunto se conoce com\u00fanmente como eje de la toma de fuerza o transmisi\u00f3n en el uso agr\u00edcola cotidiano, aunque t\u00e9cnicamente la toma de fuerza es el punto de salida de potencia del tractor y la transmisi\u00f3n es el componente de transmisi\u00f3n mec\u00e1nica entre el tractor y el implemento. En aplicaciones con cajas de engranajes para cortadoras rotativas, la transmisi\u00f3n debe estar dise\u00f1ada para soportar el par m\u00e1ximo que experimentar\u00e1 la caja de engranajes durante los impactos de las cuchillas, no solo el par de corte constante, ya que los picos de par pueden ser de tres a cinco veces superiores al valor nominal.<\/p>\n<p>La RC-145 se conecta directamente desde la salida de la toma de fuerza del tractor hasta la barra portacuchillas en un eje vertical debajo de la plataforma de corte. Recibe energ\u00eda rotacional de la transmisi\u00f3n en el eje de entrada, la redirige 90 grados mediante engranajes c\u00f3nicos de precisi\u00f3n y la transmite a trav\u00e9s del eje de salida para accionar las pesadas cuchillas de corte basculantes con el par y la velocidad necesarios para cortar, triturar o acolchar la vegetaci\u00f3n. Esta redirecci\u00f3n de potencia de 90 grados es la funci\u00f3n mec\u00e1nica fundamental de toda caja de engranajes agr\u00edcolas de \u00e1ngulo recto en el servicio de desbrozadoras rotativas, y la calidad del engranaje c\u00f3nico es el factor determinante de la vida \u00fatil de la unidad en condiciones de campo.<\/p>\n<p>Cuando una cuchilla golpea una densa masa de vegetaci\u00f3n, una roca enterrada o un trozo s\u00f3lido de madera, el pico de torsi\u00f3n resultante se transmite a trav\u00e9s del eje de salida y el engranaje antes de llegar al eje de entrada y la transmisi\u00f3n. La protecci\u00f3n contra sobrecargas del RC-145, ya sea un perno de seguridad en el acoplamiento de la transmisi\u00f3n o un embrague deslizante integrado, est\u00e1 dise\u00f1ada para interceptar este pico en la entrada de la caja de engranajes, evitando que se transmita al tren de engranajes de la toma de fuerza del tractor, donde podr\u00eda da\u00f1ar los componentes de la transmisi\u00f3n, con el consiguiente coste de reparaci\u00f3n. Esta funci\u00f3n de protecci\u00f3n es una de las razones por las que invertir en una caja de engranajes de repuesto de calidad para aplicaciones de corte rotativo siempre resulta m\u00e1s econ\u00f3mico que intentar utilizar unidades de baja calidad que transmiten cargas de impacto completas a trav\u00e9s de todo el tren de transmisi\u00f3n.<\/p>\n<p>La selecci\u00f3n correcta del eje de transmisi\u00f3n para el RC-145 requiere que coincidan tres par\u00e1metros: la especificaci\u00f3n del estriado de entrada (6 estr\u00edas de 1-3\/8 pulgadas o 1-3\/4 pulgadas), el par de torsi\u00f3n del eje de transmisi\u00f3n (que debe superar el par m\u00e1ximo de la caja de cambios de 19\u00a0950 lb-pulg. a la m\u00e1xima potencia) y el rango de longitud de operaci\u00f3n, calculado desde el extremo de la toma de fuerza del tractor hasta el eje de entrada de la caja de cambios con el implemento en sus alturas m\u00ednima y m\u00e1xima de transporte. Un eje de transmisi\u00f3n demasiado corto tocar\u00e1 fondo al flexionarse, provocando su fractura; uno demasiado largo se extender\u00e1 completamente durante el transporte, permitiendo que las secciones telesc\u00f3picas se separen. Ambas situaciones provocan una p\u00e9rdida repentina y total de la tracci\u00f3n en el peor momento posible durante el trabajo en el campo.<\/p>\n<p>Las cinco relaciones de transmisi\u00f3n disponibles del RC-145 afectan la relaci\u00f3n entre la velocidad de entrada de la toma de fuerza (TDF) y la velocidad de salida de la cuchilla, pero no modifican la especificaci\u00f3n de entrada de la TDF ni la interfaz de la transmisi\u00f3n. La selecci\u00f3n de la relaci\u00f3n se realiza eligiendo el conjunto de engranajes adecuado al realizar el pedido, y las diferentes configuraciones de relaci\u00f3n no son intercambiables en campo. Esto significa que los operadores que prev\u00e9n trabajar en una amplia gama de densidades de cultivos y tipos de terreno, desde aplicaciones con una caja de engranajes de cortadora rotativa de 60 hp en pastos ligeros hasta condiciones de maleza densa con una caja de engranajes de cortadora rotativa de 75 hp, deben seleccionar una relaci\u00f3n que represente el mejor compromiso para su aplicaci\u00f3n t\u00edpica m\u00e1s exigente, en lugar de optar por una relaci\u00f3n 1:1 como punto medio gen\u00e9rico.<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6109 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_PTO-Shaft-for-Bush-Hog-Rotary-Cutter-2.webp\" alt=\"Eje de toma de fuerza para desbrozadora rotativa Bush Hog\" width=\"800\" height=\"800\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_PTO-Shaft-for-Bush-Hog-Rotary-Cutter-2.webp 800w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/03\/0_PTO-Shaft-for-Bush-Hog-Rotary-Cutter-2-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/td>\n<td style=\"width: 50%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7925 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-61-Rotary-Cutter-Gearbox-2.webp\" alt=\"Caja de engranajes para cortadora rotativa RC-61\" width=\"1000\" height=\"1000\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-61-Rotary-Cutter-Gearbox-2.webp 1000w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-61-Rotary-Cutter-Gearbox-2-980x980.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-61-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\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u00bfPor qu\u00e9 elegir las cajas de engranajes para cortadoras rotativas de CMN Transmission?<\/h2>\n<p>Korea CMN Transmission Co., Ltd. was established in 2000 and is headquartered in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. With over 100 factory employees and a modern production facility, CMN Transmission is dedicated entirely to the research and development, manufacturing, sales, and service of agricultural gearboxes. Over more than two decades of continuous operation, the company has grown into a globally recognized, reliable supplier in the agricultural power transmission industry, exporting to more than 60 destinations worldwide and serving customers across six continents.<\/p>\n<p>La gama de productos de CMN Transmission es una de las m\u00e1s completas disponibles de un \u00fanico fabricante especializado en cajas de engranajes para cortadoras rotativas. Las categor\u00edas de productos incluyen cajas de engranajes para cortadoras rotativas, segadoras rotativas, segadoras de acabado, cultivadoras rotativas, mezcladoras de piensos, esparcidoras de fertilizantes, segadoras de martillos, perforadoras de postes, empacadoras redondas, empacadoras cuadradas, segadoras de discos, sistemas de riego de pivote central, accionamientos hidr\u00e1ulicos, m\u00e1quinas de ensilaje, pulverizadores para huertos, rastrillos rotativos, cosechadoras combinadas, almacenamiento y transporte de grano, cabezales de ma\u00edz, barras de corte, sistemas de alimentaci\u00f3n av\u00edcola y cajas de engranajes agr\u00edcolas a medida, cubriendo casi mil especificaciones. La capacidad de producci\u00f3n anual supera las 500\u00a0000 unidades, lo que garantiza una disponibilidad constante y plazos de entrega cortos incluso para pedidos de gran volumen.<\/p>\n<ul>\n<li><strong>Certified Quality Standards<\/strong><br \/>\nCE, ISO 9001, Environmental Management, and Occupational Health and Safety certifications are held and maintained across all product lines, providing the documented quality evidence required by institutional buyers, OEM approval programs, and regulatory import requirements in all major markets.<\/li>\n<li><strong>Global Export Experience in 60+ Countries<\/strong><br \/>\nCMN Transmission exports to the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, India, Thailand, Vietnam, Turkey, Australia, New Zealand, and many additional markets, with extensive experience navigating import documentation, phytosanitary requirements, and local certification needs for each destination.<\/li>\n<li><strong>500,000+ Units Annual Production Capacity<\/strong><br \/>\nHigh-volume production capability ensures that rotary cutter gearbox for sale inquiries from large distributors and OEM buyers can be fulfilled on time, with consistent quality across production batches. Short lead times and buffer stock availability for top-selling models minimize customer downtime during peak demand periods at the start of each cutting season.<\/li>\n<li>Application Engineering and Technical Support<br \/>\nEl equipo de ingenier\u00eda de CMN Transmission ofrece asesoramiento t\u00e9cnico previo a la venta para verificar la compatibilidad del producto y la selecci\u00f3n de la relaci\u00f3n de transmisi\u00f3n, orientaci\u00f3n para la instalaci\u00f3n en configuraciones complejas y asistencia posventa para problemas en campo. Este nivel de servicio distingue a CMN de los importadores de productos b\u00e1sicos que solo ofrecen hojas de datos gen\u00e9ricas sin conocimientos especializados para respaldar las decisiones de compra.<\/li>\n<li><strong>Competitive OEM and Distributor Pricing<\/strong><br \/>\nVolume pricing tiers, flexible minimum order quantities, and customization options allow CMN Transmission to serve both small independent dealers seeking single-unit replacement stock and large OEM manufacturers requiring thousands of units per year across multiple product specifications, with pricing structured to support competitive end-market positioning in all regions served.<\/li>\n<li><strong>Robust Export Packaging and Logistics Support<\/strong><br \/>\nTodas las unidades de exportaci\u00f3n se embalan para resistir las tensiones mec\u00e1nicas del transporte mar\u00edtimo internacional en contenedores, con doble embalaje protegido con espuma para unidades individuales y configuraciones de pal\u00e9s personalizadas para env\u00edos de gran volumen. El equipo de log\u00edstica de CMN Transmission prepara la factura comercial completa, la lista de empaque, el certificado de origen y la declaraci\u00f3n CE para agilizar el despacho de aduanas en todos los mercados de destino, reduciendo la carga administrativa para los importadores y distribuidores que gestionan grandes pedidos recurrentes.<\/li>\n<\/ul>\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\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" 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\" alt=\"Fabricantes de cajas de engranajes para cortadoras rotativas\" width=\"1200\" height=\"820\" \/><\/p>\n<h2>Preguntas frecuentes<\/h2>\n<p><strong>Q: Is this RC-145 a direct bolt-on replacement for the original Omni RC-145 gearbox without modification?<\/strong><br \/>\nA: Yes. The CMN RC-145 is manufactured to match the critical dimensions of the original Omni unit, including the 260 mm flange diameter, 203.2 mm six-hole mounting bolt circle, 96.0 mm hub pilot, and 204.5 mm flange-to-hub-pilot dimension. No frame drilling, welding, or adapter plates are required for a standard installation on an existing Omni RC-145 equipped cutting deck. Always verify the specific dimensions of your machine against the published specification before installation if your cutter has been modified from OEM configuration.<\/p>\n<p><strong>Q: What type of oil should I use and what is the correct rotary cutter gearbox oil level?<\/strong><br \/>\nA: The RC-145 requires 1.8 L (60 oz.) of gear oil. SAE 90 GL-5 gear oil is the standard recommendation for temperate climates; SAE 85W-140 GL-5 is preferred for hot-climate heavy-duty applications where sustained high-load temperatures are expected. The correct oil level is at the bottom of the fill port threads when the unit is installed in its normal operating orientation. Check the level at every 50-hour service interval by removing the fill cap and confirming oil is visible at the port mouth. Do not overfill, as excess oil pressurizes the housing and accelerates seal wear.<\/p>\n<p><strong>Q: How do I select the correct rotary cutter gearbox ratio for my application?<\/strong><br \/>\nA: Seleccione la relaci\u00f3n de transmisi\u00f3n seg\u00fan su tarea de corte principal. Una relaci\u00f3n 1:1 proporciona velocidad de entrada y salida iguales y es la opci\u00f3n est\u00e1ndar para la mayor\u00eda de los cortes de c\u00e9sped y vegetaci\u00f3n ligera. Las relaciones de reducci\u00f3n (1.21:1 entrada-salida) aumentan el par en la cuchilla para la limpieza de maleza densa y vegetaci\u00f3n le\u00f1osa de gran di\u00e1metro. Las relaciones de aumento (1:1.21, 1:1.46, 1:1.92) aumentan la velocidad de la cuchilla en relaci\u00f3n con la entrada de la toma de fuerza, lo que puede mejorar la calidad del corte en aplicaciones de acabado fino o en condiciones donde se necesita mantener la inercia de la cuchilla durante cambios r\u00e1pidos de velocidad de avance. Comun\u00edquese con el equipo t\u00e9cnico de CMN Transmission si no est\u00e1 seguro de qu\u00e9 relaci\u00f3n se adapta mejor a la potencia espec\u00edfica de su tractor y a las condiciones de corte previstas.<\/p>\n<p><strong>Q: What is the maximum HP I can run through this gearbox for a 100 hp rotary cutter gearbox application?<\/strong><br \/>\nA: El RC-145 tiene una potencia nominal de entrada continua m\u00e1xima de 181 HP (135 kW) en la toma de fuerza (TDF). Para una aplicaci\u00f3n con caja de engranajes de cortadora rotativa de 100 HP, la unidad opera c\u00f3modamente dentro de su rango nominal con un amplio margen de seguridad. Los operadores deben verificar la potencia real de la TDF de su tractor, que suele ser entre 15 y 201 HP menor que la potencia del motor indicada en las especificaciones del tractor, y confirmar que no supere los 181 HP en la TDF en condiciones de trabajo a m\u00e1xima potencia. El funcionamiento sostenido por encima de la potencia nominal reduce la vida \u00fatil de los dientes de los engranajes y los cojinetes, y puede provocar deformaciones en la carcasa bajo condiciones prolongadas de sobrecarga t\u00e9rmica.<\/p>\n<p><strong>Q: How often should I change the gear oil to prevent rotary cutter gearbox repair costs?<\/strong><br \/>\nA: Perform the first oil change at 50 operating hours on a new or rebuilt unit to remove initial break-in wear debris. After that, change the oil every 250 operating hours under normal conditions, or every 150 hours in high-temperature, heavy-duty applications such as sustained brush clearing in summer. Inspect the drained oil at each change for metal particles, a discoloured appearance indicating water contamination, or a burnt smell indicating overheating. Any of these indicators calls for a full internal inspection before the unit is returned to service to avoid expensive secondary damage to the gear and bearing assemblies.<\/p>\n<p><strong>Q: Can this gearbox be rebuilt in the field, and where can I source rotary cutter gearbox parts?<\/strong><br \/>\nA: La reconstrucci\u00f3n de la caja de engranajes de una segadora rotativa es factible para un mec\u00e1nico agr\u00edcola competente que tenga acceso a una prensa y herramientas b\u00e1sicas para la instalaci\u00f3n de rodamientos. Las piezas que se reemplazan con mayor frecuencia son los retenes de aceite de los ejes de entrada y salida (que a menudo se pueden cambiar sin desmontar completamente el equipo), los rodamientos de rodillos c\u00f3nicos y el collar\u00edn del perno de seguridad en el acoplamiento de la transmisi\u00f3n. CMN Transmission dispone de una gama completa de repuestos para la caja de engranajes de la segadora rotativa RC-145, incluyendo kits de retenes, juegos de rodamientos y pares de engranajes c\u00f3nicos. P\u00f3ngase en contacto con nuestro equipo de repuestos con el n\u00famero de serie de su unidad para confirmar los n\u00fameros de pieza correctos antes de realizar el pedido, ya que peque\u00f1as diferencias entre lotes de producci\u00f3n pueden afectar las especificaciones de los retenes y rodamientos.<\/p>\n<p><strong>Q: My gearbox is making a whining or grinding noise during operation. What does this indicate?<\/strong><br \/>\nA: A sustained whining sound that increases with PTO speed typically indicates bearing wear, particularly on the input shaft tapered roller bearing that carries the combined radial and thrust load from the bevel gear mesh. A grinding noise accompanied by vibration usually indicates gear tooth damage, which can result from operating with insufficient oil, a contaminated oil bath, or sustained overload beyond the rated HP. Stop operation immediately and check the oil level and condition first. If the oil is correct, the unit will require disassembly for internal inspection. Continuing to operate a noisy gearbox typically results in rapid escalation to catastrophic failure and replacement rather than repair.<\/p>\n<p><strong>Q: Is the RC-145 suitable for use as a 75 hp rotary cutter gearbox and a 40 hp rotary cutter gearbox application on the same farm with different tractors?<\/strong><br \/>\nR: S\u00ed. El rango de potencia nominal del RC-145, de 71 a 181 HP, cubre tanto una entrada de toma de fuerza (TDF) de tractor de 40 HP como de 75 HP sin necesidad de modificar la unidad. Los componentes internos de engranajes y cojinetes est\u00e1n dimensionados para el extremo superior del rango de potencia nominal, por lo que operar entre 40 y 75 HP representa un ciclo de trabajo conservador que prolongar\u00e1 la vida \u00fatil de la unidad en comparaci\u00f3n con un funcionamiento continuo a alta potencia. Aseg\u00farese de que la transmisi\u00f3n que conecta el tractor de menor potencia a la caja de cambios tenga la capacidad adecuada para el par m\u00e1ximo de salida de la TDF de ese tractor a la velocidad de TDF seleccionada.<\/p>\n<p><strong>Q: Does CMN Transmission offer volume discounts for dealers and OEM purchasers buying rotary cutter gearboxes in bulk?<\/strong><br \/>\nA: Yes. CMN Transmission offers tiered pricing for OEM partners, agricultural machinery distributors, and fleet maintenance organizations purchasing the RC-145 and other products from our range in volume. Minimum order quantities for discounted pricing, lead time commitments, and customization options including specific shaft configurations, alternate coatings, and custom mounting flanges are all available for discussion. Contact our export sales team directly with your annual volume requirements and delivery region to receive a tailored quotation. We currently serve rotary cutter gearbox suppliers and distributors in more than 60 countries worldwide.<\/p>\n<p><strong>Q: What certifications does the RC-145 Rotary Cutter Gearbox hold, and does it comply with international import requirements?<\/strong><br \/>\nA: CMN Transmission posee las certificaciones CE, ISO 9001 de gesti\u00f3n de calidad, gesti\u00f3n ambiental y seguridad y salud ocupacional, que abarcan los procesos de fabricaci\u00f3n utilizados para producir el RC-145 y todos los dem\u00e1s productos de nuestra gama. La certificaci\u00f3n CE cumple con los requisitos de la Directiva de Maquinaria de la Uni\u00f3n Europea. La certificaci\u00f3n ISO 9001 proporciona la documentaci\u00f3n de gesti\u00f3n de calidad requerida por muchos programas de compras institucionales y procesos de aprobaci\u00f3n de proveedores OEM. Para mercados con requisitos espec\u00edficos de certificaci\u00f3n de importaci\u00f3n a nivel nacional, comun\u00edquese con nuestro equipo de cumplimiento de exportaciones e ind\u00edquenos los detalles de las normas aplicables del pa\u00eds de destino; le proporcionaremos la documentaci\u00f3n pertinente.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-7962 size-full\" src=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-145-Rotary-Cutter-Gearbox-2.webp\" alt=\"Caja de engranajes para cortadora rotativa RC-145\" width=\"1000\" height=\"1000\" srcset=\"https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-145-Rotary-Cutter-Gearbox-2.webp 1000w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-145-Rotary-Cutter-Gearbox-2-980x980.webp 980w, https:\/\/korea-transmission.com\/wp-content\/uploads\/2026\/09\/RC-145-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>Opiniones de los clientes<\/h2>\n<p><strong>James Whitaker, Ranch Management, United States<\/strong><br \/>\n\u201cTenemos una explotaci\u00f3n ganadera de 485 hect\u00e1reas en Texas y la caja de engranajes original de nuestra segadora de 4,5 metros se desgast\u00f3 tras cuatro temporadas de uso intensivo. Pedimos este repuesto RC-145 en marzo. La instalaci\u00f3n la hicimos en una tarde con dos personas y un gato hidr\u00e1ulico, sin ning\u00fan problema con la alineaci\u00f3n de los tornillos. Seis meses despu\u00e9s, funcionando con un tractor de 130 CV en pastos accidentados con mucha vegetaci\u00f3n de cedro, sigue funcionando a la perfecci\u00f3n. No tiene fugas, no hace ruido y se mantiene m\u00e1s fr\u00eda que la anterior. El precio fue justo y el env\u00edo fue m\u00e1s r\u00e1pido de lo esperado. Un equipo agr\u00edcola de verdad, para trabajar.\u201d<\/p>\n<p><strong>Derek Pollock, Agricultural Parts Dealer, Canada<\/strong><br \/>\nSoy distribuidor en el sur de Ontario y tengo un par de estas unidades RC-145 en stock para reemplazos de emergencia. El embalaje es excelente, con doble caja y espuma en las esquinas para que nada llegue da\u00f1ado, lo cual es importante al importar. Los clientes informan que encajan perfectamente tanto en la Omni RC-145 como en su equivalente de Rhino. Un cliente reemplaz\u00f3 la suya cuando ten\u00eda alrededor de 175 HP en una desbrozadora de doble cuchilla y ha estado funcionando sin problemas durante dos temporadas de corte. La respuesta de CMN a mis preguntas t\u00e9cnicas antes del primer pedido fue r\u00e1pida y precisa. Seguir\u00e9 comprando.<\/p>\n<p><strong>Paulo Henrique Moraes, Sugarcane Grower, Brazil<\/strong><br \/>\nTrabajo con ca\u00f1a de az\u00facar en el interior de S\u00e3o Paulo y necesitaba reemplazar la caja de engranajes de mi rotor de corte despu\u00e9s de que una piedra destruyera el conjunto original. Recib\u00ed esta unidad RC-145 en 18 d\u00edas. El montaje fue sencillo, todo encaj\u00f3 a la perfecci\u00f3n sin modificaciones. He realizado tres cosechas desde entonces, m\u00e1s de 600 horas de trabajo, y el \u00fanico gasto fue el cambio de aceite, tal como se recomend\u00f3. La calidad super\u00f3 con creces mis expectativas para un producto de repuesto. Sin duda, volver\u00e9 a comprarla cuando la necesite.<\/p>\n<p><strong>Colin Bradshaw, Roadside Maintenance, United Kingdom<\/strong><br \/>\nGestionamos contratos de desbroce de arcenes para un ayuntamiento de la regi\u00f3n de West Midlands y contamos con tres desbrozadoras Twose en nuestra flota. El oto\u00f1o pasado, sustituimos la caja de cambios de la m\u00e1quina m\u00e1s antigua por esta RC-145. El dise\u00f1o de triple ret\u00e9n fue la principal raz\u00f3n por la que la elegimos, ya que trabajamos en condiciones h\u00famedas la mayor parte de la temporada y las antiguas unidades de un solo ret\u00e9n siempre goteaban despu\u00e9s de seis meses. Tras un programa completo de invierno y primavera, sigue completamente seca y sin una gota de aceite en la plataforma. El mec\u00e1nico coment\u00f3 que hab\u00eda sido el cambio de caja de cambios m\u00e1s sencillo que hab\u00eda realizado en a\u00f1os, ya que todo encaj\u00f3 a la perfecci\u00f3n a la primera.<\/p>\n<p><strong>Markus Hofbauer, Roadside Maintenance, Germany<\/strong><br \/>\nSoy contratista agr\u00edcola y opero varias m\u00e1quinas para el mantenimiento de zonas verdes y arcenes en Baviera. La unidad Omni original de una de nuestras segadoras rotativas se averi\u00f3 tras cuatro a\u00f1os de uso intensivo. Esta unidad de repuesto RC-145 funcion\u00f3 a la perfecci\u00f3n desde el primer momento tras su instalaci\u00f3n. La tramitaci\u00f3n del pedido y la documentaci\u00f3n aduanera fueron muy sencillas. Tras ocho meses, no hemos tenido ning\u00fan problema con las juntas ni los rodamientos, a pesar de que tambi\u00e9n la utilizamos en pendientes h\u00famedas. La calidad de esta unidad de repuesto es impresionante.<\/p>\n<p>Andrew Carmichael, Pasture Management, Australia<br \/>\nGestionamos una propiedad agr\u00edcola y ovina de 1200 hect\u00e1reas en Nueva Gales del Sur y utilizamos dos segadoras rotativas de 3,6 metros para el manejo de pastos y el mantenimiento de cortafuegos. Una de las unidades necesitaba una caja de engranajes nueva despu\u00e9s de que un impacto con un poste de hormig\u00f3n enterrado destrozara la carcasa de la original. Esta unidad de repuesto CMN se instal\u00f3 sin problemas y sobrevivi\u00f3 a un programa completo de corte de cortafuegos durante todo el verano en potreros secos y pedregosos, que es precisamente el tipo de uso que suele desgastar las unidades de menor calidad en una sola temporada. El tap\u00f3n indicador de nivel de aceite es un detalle muy pr\u00e1ctico que ahorra tiempo en las revisiones previas al turno. La entrega a la zona rural de Nueva Gales del Sur tard\u00f3 unas tres semanas, lo cual fue aceptable dado el origen.<\/p>\n<p><strong>Giuseppe Ferrante, Vineyard Maintenance, Italy<\/strong><br \/>\nTenemos una cooperativa agr\u00edcola en Apulia y utilizamos segadoras rotativas para el mantenimiento de vi\u00f1edos y olivares. El servicio de preventa fue muy profesional: el t\u00e9cnico confirm\u00f3 la compatibilidad con nuestra m\u00e1quina antes de realizar el pago, lo cual fue fundamental. La caja de cambios RC-145 lleg\u00f3 en 22 d\u00edas, bien embalada, y el montaje fue r\u00e1pido. Tras una temporada completa de uso, no hemos tenido ning\u00fan problema. La calidad de fabricaci\u00f3n es superior a la de una pieza de repuesto anterior de otra marca que hab\u00edamos probado.<\/p>\n<p><strong>Roberto Alvarez, Agricultural Machinery, Argentina<\/strong><br \/>\nSoy importador de maquinaria agr\u00edcola en C\u00f3rdoba y tengo varios clientes que utilizan grandes desbrozadoras rotativas. En septiembre realic\u00e9 un pedido de prueba de 3 unidades RC-145. La documentaci\u00f3n de exportaci\u00f3n era correcta y el despacho de aduanas no present\u00f3 problemas. Los tres clientes que instalaron las unidades est\u00e1n satisfechos: uno ya lleva 400 horas de uso en el cultivo de soja despu\u00e9s de la cosecha y otro las utiliza para la limpieza de arcenes. Los precios son competitivos para la calidad recibida. Ya he realizado un segundo pedido de 6 unidades.<\/p>\n<p><strong>Suresh Venkataraman, Mantenimiento de Carreteras, India<\/strong><br \/>\nTrabajo para el departamento de carreteras del condado de Karnataka y nos encargamos del mantenimiento de aproximadamente 800 km de arcenes rurales con desbrozadoras rotativas. Probamos una unidad RC-145 en nuestra m\u00e1quina m\u00e1s exigente, que opera en suelo later\u00edtico con frecuentes rocas incrustadas. Tras seis meses y unas 350 horas de funcionamiento, la caja de engranajes funciona correctamente, sin fallos en los sellos ni ruidos extra\u00f1os. El dise\u00f1o con ba\u00f1o de aceite y orificios en la caja de engranajes mantiene los cojinetes inferiores adecuadamente lubricados, incluso en largas jornadas en pendientes. Ahora planeamos estandarizar el uso de esta caja de engranajes para el pr\u00f3ximo ciclo de renovaci\u00f3n de nuestra flota.<\/p>","protected":false},"excerpt":{"rendered":"<p>The RC-145 Rotary Cutter Gearbox Replacement for Omni RC-145 Gearbox is a heavy-duty agricultural gearbox engineered specifically for high-demand cutting machinery in the farming and land-management industries. Designed as a direct drop-in replacement for the OEM Omni RC-145 unit, this rotary cutter gearbox drives rotary knives and cutting decks for grass cutting, straw crushing, and brush clearing operations across a wide range of field conditions. Its bevel-gear architecture and triple-lip spring-loaded seals allow it to operate reliably in muddy paddocks, roadside ditches, and wetland areas where conventional drive units fail prematurely.<\/p>","protected":false},"featured_media":7851,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[301],"product_tag":[303,302,306,304,307,305,308],"class_list":{"0":"post-7967","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\/es\/wp-json\/wp\/v2\/product\/7967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/comments?post=7967"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/media\/7851"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/media?parent=7967"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/product_brand?post=7967"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/product_cat?post=7967"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/product_tag?post=7967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}