{"id":7960,"date":"2026-09-07T06:47:09","date_gmt":"2026-09-07T06:47:09","guid":{"rendered":"https:\/\/korea-transmission.com\/?post_type=product&p=7960"},"modified":"2026-09-07T08:07:14","modified_gmt":"2026-09-07T08:07:14","slug":"rc-120-rotary-cutter-gearbox-replacement-for-omni-rc-120-gearbox","status":"publish","type":"product","link":"https:\/\/korea-transmission.com\/ms\/product\/rc-120-rotary-cutter-gearbox-replacement-for-omni-rc-120-gearbox\/","title":{"rendered":"Penggantian Kotak Gear Pemotong Putar RC-120 untuk Kotak Gear Omni RC-120"},"content":{"rendered":"

The RC-120 Rotary Cutter Gearbox Replacement for Omni RC-120 Gearbox is a premium-grade power transmission unit engineered specifically for agricultural machinery across demanding field environments. Designed to serve as a direct drop-in replacement for the OEM Omni RC-120 gearbox, this unit is primarily used to drive rotary knives and cutting assemblies for efficient vegetation management operations, including grass cutting, straw crushing, and brush clearing. Rated from 51 to 161 HP and delivering torque between 803 and 2,252 Nm, it converts the high-speed rotation of a tractor PTO shaft (540 or 1,000 RPM) into stable, high-torque output suitable for even the heaviest cutting loads. Five selectable gear ratios (1.21:1, 1:1, 1:1.21, 1:1.46, 1:1.92) allow the operator to match output speed and torque to the specific crop density or terrain encountered. The bevel gear architecture, triple-lip spring-loaded seals, and tapered roller bearings ensure this agricultural gearbox withstands the relentless shock loads, contamination, and moisture exposure inherent to rotary cutter operation.<\/p>\n

This gearbox for rotary cutter applications excels across a wide range of scenarios: slashing overgrown roadsides, cutting thick pasture grass between grazing cycles, mulching post-harvest crop stubble, and clearing brush along fence lines and waterways. The sealed ductile iron housing, weighing 49.9 kg (109 lbs), contains a precision bevel gear set that redirects PTO input through 90 degrees to drive the blade spindle vertically beneath the mower deck. Whether used on finishing mowers, rotary slashers, or heavy-duty rotary cutters, the RC-120 maintains consistent blade speed even as load conditions fluctuate, protecting both the cutting implement and the tractor driveline. For operators seeking a reliable, proven replacement rotary cutter gearbox that installs without modification and performs at OEM specification, the RC-120 from CMN Transmission is the definitive choice.<\/p>\n

\"Kotak<\/p>\n

Spesifikasi Produk<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Model:<\/td>\nKotak Gear RC-120<\/td>\n<\/tr>\n
Penilaian HP<\/td>\n51 \u2013 161 kuasa kuda<\/td>\n<\/tr>\n
Tork:<\/td>\n7,117 \u2013 19,950 paun-masuk.
\n(803 \u2013 2,252 Nm.)<\/td>\n<\/tr>\n
Nisbah:<\/td>\n1.21:1, 1:1, 1:1.21, 1:1.46, 1:1.92<\/td>\n<\/tr>\n
Jenis Gear:<\/td>\nSerong<\/td>\n<\/tr>\n
Jenis Meterai:<\/td>\nPegas Bibir Tiga Beban<\/td>\n<\/tr>\n
Jenis Bearing:<\/td>\nPenggelek Tirus<\/td>\n<\/tr>\n
Kapasiti Minyak:<\/td>\n60 oz.
\n(1.8 liter)<\/td>\n<\/tr>\n
Berat:<\/td>\n109 paun.
\n(49.9 kg)<\/td>\n<\/tr>\n
Aplikasi:<\/td>\nMesin Pemotong Rumput Kemasan
\nPemotong Putar
\nPemotong Putar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

RC-120 Rotary Cutter Gearbox Dimensions<\/h2>\n

\"Dimensi<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nBerat Maksimum Unit<\/th>\nCL ke Melalui Cap A<\/th>\nCL ke Flange B<\/th>\nFlange ke Hab Pilot C<\/th>\nDiameter Juruterbang Hab H<\/th>\nDiameter bebibir D1<\/th>\nCorak Lubang Bolt E1<\/th>\nLubang Pemasangan F1<\/th>\nSaiz Segiempat Bebibir D2<\/th>\nCorak Lubang Bolt E2<\/th>\nLubang Pemasangan F2<\/th>\n<\/tr>\n
paun<\/th>\nkg<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\ndalam<\/th>\nmm<\/th>\n<\/tr>\n<\/thead>\n
RC-20<\/td>\n34<\/td>\n15<\/td>\n3.0<\/td>\n76<\/td>\n6.5<\/td>\n165<\/td>\n2.40<\/td>\n61.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n6.18<\/td>\n157<\/td>\n6.8<\/td>\n171.5<\/td>\n(4) 0.67<\/td>\n(4) 17<\/td>\n<\/tr>\n
RC-27<\/td>\n47<\/td>\n21<\/td>\n3.5<\/td>\n88<\/td>\n6.4<\/td>\n164<\/td>\n2.40<\/td>\n61.0<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n6.18<\/td>\n157<\/td>\n6.8<\/td>\n171.5<\/td>\n(4) 0.67<\/td>\n(4) 17<\/td>\n<\/tr>\n
RC-30<\/td>\n51<\/td>\n23<\/td>\n3.9<\/td>\n100<\/td>\n6.4<\/td>\n164<\/td>\n3.30<\/td>\n84.0<\/td>\n2.5<\/td>\n63.5<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n6.89<\/td>\n175<\/td>\n6.8<\/td>\n171.5<\/td>\n(4) 0.67<\/td>\n(4) 17<\/td>\n<\/tr>\n
RC-51<\/td>\n56<\/td>\n25<\/td>\n3.7<\/td>\n94<\/td>\n6.4<\/td>\n164<\/td>\n3.50<\/td>\n88.9<\/td>\n2.5<\/td>\n63.5<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n6.89<\/td>\n175<\/td>\n6.8<\/td>\n171.5<\/td>\n(4) 0.67<\/td>\n(4) 17<\/td>\n<\/tr>\n
RC-61<\/td>\n81<\/td>\n37<\/td>\n4.2<\/td>\n107<\/td>\n7.2<\/td>\n183<\/td>\n3.50<\/td>\n88.9<\/td>\n2.5<\/td>\n63.5<\/td>\n9.5<\/td>\n242.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(4) 0.787<\/td>\n(4) 20<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-71<\/td>\n83<\/td>\n38<\/td>\n4.2<\/td>\n107<\/td>\n7.2<\/td>\n183<\/td>\n3.50<\/td>\n88.9<\/td>\n2.5<\/td>\n63.5<\/td>\n9.5<\/td>\n242.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(4) 0.787<\/td>\n(4) 20<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-81<\/td>\n98<\/td>\n45<\/td>\n4.6<\/td>\n116<\/td>\n11.0<\/td>\n279<\/td>\n3.50<\/td>\n88.9<\/td>\n2.5<\/td>\n63.5<\/td>\n9.6<\/td>\n245.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(4) 0.787<\/td>\n(4) 20<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-100<\/td>\n96<\/td>\n44<\/td>\n4.8<\/td>\n121<\/td>\n7.1<\/td>\n180<\/td>\n3.78<\/td>\n96.0<\/td>\n2.5<\/td>\n63.5<\/td>\n9.4<\/td>\n240.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(4) 0.787<\/td>\n(4) 20<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-130S<\/td>\n109<\/td>\n49<\/td>\n5.1<\/td>\n130<\/td>\n7.1<\/td>\n180<\/td>\n4.00<\/td>\n102.0<\/td>\n2.9<\/td>\n73.0<\/td>\n9.8<\/td>\n250.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(6) 0.807<\/td>\n(6) 21<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-130L<\/td>\n120<\/td>\n54<\/td>\n5.1<\/td>\n130<\/td>\n7.1<\/td>\n180<\/td>\n7.20<\/td>\n184.0<\/td>\n3.8<\/td>\n96.0<\/td>\n9.8<\/td>\n250.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(6) 0.807<\/td>\n(6) 21<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-145<\/td>\n110<\/td>\n50<\/td>\n5.6<\/td>\n142<\/td>\n8.9<\/td>\n225<\/td>\n8.05<\/td>\n204.5<\/td>\n3.8<\/td>\n96.0<\/td>\n10.2<\/td>\n260.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(6) 0.807<\/td>\n(6) 21<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-150L<\/td>\n145<\/td>\n66<\/td>\n5.1<\/td>\n130<\/td>\n11.0<\/td>\n280<\/td>\n7.20<\/td>\n184.0<\/td>\n3.8<\/td>\n96.0<\/td>\n9.8<\/td>\n250.0<\/td>\n8.0<\/td>\n203.2<\/td>\n(6) 0.807<\/td>\n(6) 21<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
RC-200<\/td>\n220<\/td>\n100<\/td>\n6.4<\/td>\n162<\/td>\n9.5<\/td>\n241<\/td>\n8.00<\/td>\n203.0<\/td>\n5.3<\/td>\n135.0<\/td>\n11.8<\/td>\n300.0<\/td>\n10<\/td>\n254.0<\/td>\n(6) 0.905<\/td>\n(6) 23<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key Features of the RC-120 Rotary Cutter Gearbox<\/h2>\n

1. Terrain Adaptability and Floating Design
\nThe floating gearbox mounting design allows the cutter deck and blade assembly to ride with ground undulations automatically, preventing the cutting blades from striking buried rocks, hardwood stumps, or irrigation fittings at full operating speed. This adaptive height adjustment is particularly critical when mowing on uneven pasture terrain, sloped embankments, or waterway banks where the ground surface can change rapidly across the working width. The result is reduced shock transmission to the gearbox housing and significantly extended gear and bearing service life.<\/p>\n

2. Accessible Field Maintenance Design
\nRotary cutter gearbox oil maintenance is simplified by externally accessible oil fill ports and a bottom-mounted drain valve that allow complete oil changes without removing the gearbox from the implement. Operators can check the rotary cutter gearbox oil level and add gear oil directly from ground level. The pressure relief plug prevents internal pressure buildup during operation, protecting seals from premature blow-out. This field-serviceable design reduces scheduled maintenance downtime and supports proper rotary cutter gearbox oil change intervals even during peak seasonal workloads.<\/p>\n

3. Tractor PTO Drive Compatibility
\nRC-120 bersambung terus kepada aci Power Take-Off (PTO) traktor dan menyokong sepenuhnya kelajuan input standard 540 RPM dan 1,000 RPM. Aci input splined menerima gandingan tukar pantas, membolehkan pemasangan dan penyingkiran pantas di lapangan tanpa peralatan khas. Keserasian PTO yang luas ini membolehkan kotak gear dipasangkan dengan traktor utiliti padat, traktor tanaman baris jarak pertengahan dan peralatan pertanian 4WD yang besar tanpa memerlukan aci penyesuai atau pengubahsuaian tersuai.<\/p>\n

4. Industrial-Grade Durability and Sealing
\nThe housing is cast from high-strength ductile iron with a Red Oxide primer coating that resists corrosion from mud, water, gravel, and the acidic plant sap encountered in daily agricultural use. Triple-lip spring-loaded oil seals encircle each rotating shaft, creating a three-stage barrier against both gear oil leakage and field contamination ingress. This heavy-duty sealed construction is purpose-built to withstand the abrasive and moisture-laden environment of rotary cutting operations and to protect the tapered roller bearing assemblies from premature failure caused by contaminated lubrication.<\/p>\n

5. Multiple Speed Ratios for Any Crop or Terrain
\nWith five selectable rotary cutter gearbox ratios spanning from 1.21:1 to 1:1.92, this unit covers the complete range of rotary mower gearbox output requirements. Operators managing light grass on flat pasture can select a higher blade speed ratio for a cleaner cut, while those working through dense wetland vegetation or steep slope terrain can shift to a lower-speed, higher-torque ratio to maintain stable cutting power without overloading the tractor. This flexibility makes the RC-120 an outstanding finishing mower gearbox as well as a heavy-duty rotary slasher gearbox depending on the ratio selected.<\/p>\n

6. Perlindungan Keselamatan Beban Terlalu Banyak
\nRC-120 direka bentuk untuk menerima sistem perlindungan beban lampau klac roda bebas atau bolt ricih pilihan pada aci input. Apabila bilah pemotong melanggar halangan yang tidak bergerak pada kelajuan penuh, peranti beban lampau akan terputus atau terricih sebelum tork bencana dihantar melalui set gear serong, melindungi kedua-dua bahagian dalaman kotak gear dan saluran pemacu PTO traktor daripada kerosakan. Mekanisme keselamatan bersepadu ini amat penting apabila beroperasi di kawasan yang mempunyai serpihan tertimbus, tunggul pokok tersembunyi atau singkapan berbatu di mana peristiwa penguncian bilah secara tiba-tiba tidak dapat dijangkakan.<\/p>\n

\"Kotak<\/p>\n

Prinsip Operasi<\/h2>\n

Kotak Gear Pemotong Rotary RC-120 berfungsi sebagai elemen penghantaran kuasa pusat dalam mana-mana pemotong putar, mesin pemotong kemasan atau alat pemotong putar. Prinsip operasinya bermula pada aci Pengambilalihan Kuasa traktor, yang menyampaikan tenaga putaran pada 540 atau 1,000 RPM bergantung pada standard PTO traktor dan pemilihan kelajuan. Input putaran mendatar ini memasuki kotak gear melalui aci input keluli aloi yang dikeraskan, yang disokong pada kedua-dua hujungnya oleh galas penggelek tirus jitu yang menguruskan kedua-dua beban jejari daripada daya jaringan gear dan beban tujahan paksi yang dijana semasa perubahan arah dan turun naik beban.<\/p>\n

Di dalam perumah besi mulur, aci input memacu gear serong utama. Set gear serong adalah teras fungsi kotak gear pertanian, kerana ia mengalihkan input PTO mendatar melalui tepat 90 darjah sambil melaraskan hubungan kelajuan dan tork antara input dan output secara serentak. Dalam nisbah kelajuan tinggi seperti 1:1.92, aci output berputar dengan ketara lebih pantas daripada input, menghasilkan halaju hujung bilah tinggi yang diperlukan untuk pemotongan rumput bersih pada aplikasi kotak gear pemotong rumput kemasan. Dalam nisbah pengurangan seperti 1.21:1, gear serong meningkatkan tork output berbanding tork input, memberikan kotak gear pemotong putar kelebihan mekanikal yang diperlukan untuk melalui semak tebal, batang berkayu dan tumbuh-tumbuhan basah yang padat tanpa terhenti.<\/p>\n

The output shaft exits the base of the housing and transmits drive power directly to the blade carrier spindle below the mower deck. As cutting blades encounter varying material densities throughout a pass, such as cutting thick straw, weeds, or woody brush, the bevel gear set continuously maintains the operator-selected speed ratio while the tapered roller bearings absorb the resulting axial and radial load spikes without deflection. The triple-lip spring-loaded oil seals at both shaft exit points retain the 1.8 liters of gear oil that bathes the gear mesh surfaces and lower bearing races in a continuous lubrication film.<\/p>\n

The built-in pressure relief plug regulates internal air pressure within the housing as operating temperature rises, preventing seal failure from internal pressure buildup during extended high-load operation. This self-regulating lubrication and pressure management system is why a properly maintained kotak gear pemotong berputar<\/strong><\/a> can sustain continuous operation across a full working day without overheating or oil-related component failure. The carburized alloy steel shafts, precision-forged bevel gears, and heavy ductile iron housing work together as an integrated system to ensure that virtually the entire HP rating of 51 to 161 HP reaches the cutting blades efficiently rather than being lost as heat or vibration within the gearbox itself.<\/p>\n

Konfigurasi berbilang kelajuan RC-120 juga menyokong kebolehsuaian rupa bumi dengan membenarkan pengendali memilih nisbah kotak gear pemotong berputar yang sesuai dengan keadaan medan tertentu yang dihadapi: cerun curam dan tanah lembap mendapat manfaat daripada nisbah tork yang lebih tinggi, manakala medan siap rata lebih baik dilayan oleh nisbah kelajuan bilah yang lebih pantas yang menghasilkan tindakan pemotongan yang lebih halus.<\/p>\n

\"Kotak<\/p>\n

Applications of the RC-120 Gearbox<\/h2>\n
\n

Pemotongan Rumput dan Penghancuran Jerami<\/h3>\n

Drives rotary blades to cut grass, straw, or cover crops such as cornstalks. The adjustable gear ratio controls blade speed, allowing operators to shift between coarse crushing for direct field return and fine crushing for forage feed applications. Suitable for pasture renovation, hay field preparation, and post-harvest cover crop termination across a wide range of grass densities and moisture contents.<\/p>\n<\/div>\n

\n

Pembersihan Pokok Renek dan Semak<\/h3>\n

Menghasilkan output tork tinggi yang diperlukan untuk memotong semak berkayu keras, semak samun, dan anak pokok ringan di tepi dusun, hutan, dan garisan pagar. Gear serong RC-120 yang teguh dan perumah berat menyerap tenaga impak daripada menghentam batang berkayu padat berulang kali sepanjang hari bekerja tanpa keletihan gigi gear atau keretakan perumah, menjadikan kotak gear pemotong berputar ini pilihan profesional untuk operasi pembersihan tanah.<\/p>\n<\/div>\n

\n

Penyediaan Tanah Ladang dan Rawatan Tumpukan<\/h3>\n

When combined with disc knives or flail blades, the RC-120 rapidly clears field stubble from rice, wheat, and corn harvests, cutting stalks down to a length suitable for rapid decomposition or subsequent tillage incorporation. Efficient stubble management accelerates field turnaround between harvest and planting, reducing the window before the next crop cycle begins and improving conditions for no-till seeding operations.<\/p>\n<\/div>\n

\n

Pengurusan Lantai Dusun dan Kebun Anggur<\/h3>\n

The low-profile housing makes this finishing mower gearbox ideal for inter-row vegetation control in orchards and vineyards where implement height is restricted. Operators can mulch pruning debris, cover crops, and weed growth beneath tree canopies and between trellis rows without soil inversion, preserving the mycorrhizal soil structure that fruit and wine producers depend on for premium crop quality and consistent vine performance.<\/p>\n<\/div>\n

\n

Kawalan Vegetasi Tepi Jalan dan Hak Laluan<\/h3>\n

Jabatan lebuh raya, koridor utiliti dan program penyelenggaraan laluan saluran paip bergantung pada pemotong berputar untuk pemotongan rumput bermusim yang berterusan. Julat HP RC-120 yang diberi penarafan 51 hingga 161 HP merangkumi segalanya daripada pemotong bahu yang dipasang pada traktor padat hingga unit pembawa lengan boom besar yang digunakan pada operasi pemotongan rumput lebuh raya berkelajuan tinggi, di mana tork output yang konsisten merentasi ketebalan rumput yang berbeza-beza adalah penting untuk operasi yang selamat dan cekap.<\/p>\n<\/div>\n

\n

Levee, Canal Bank, and Embankment Mowing<\/h3>\n

Water management districts and flood control agencies require vegetation management on levee crowns and canal banks where hidden debris and uneven terrain demand a shock-resistant gearbox design. The floating cutter head compatibility of the RC-120 allows the implement to follow embankment contours without blade contact with the soil surface, keeping grass short to prevent rodent burrowing while protecting the gearbox from ground impact damage.<\/p>\n<\/div>\n

\n

Pasture and Rangeland Renovation<\/h3>\n

Penternak dan pengeluar ternakan menggunakan pemotong berputar dengan kotak gear RC-120 untuk mengurangkan tekanan rumpai dan menggalakkan pertumbuhan semula rumput antara kitaran ragut. Memotong tumbuh-tumbuhan padang rumput matang pada ketinggian yang betul merangsang pembiakan anakan dan penyebaran sisi spesies makanan ternakan yang diingini, meningkatkan produktiviti padang rumput jangka panjang. Julat penarafan kotak gear pemotong berputar 75 HP dan 100 HP kotak gear merangkumi saiz traktor ladang yang paling biasa digunakan untuk kerja ini.<\/p>\n<\/div>\n

\n

Light Forestry and Land Clearing<\/h3>\n

Kontraktor pembersihan tanah yang bekerja di tapak berkepadatan anak pokok menggunakan pemotong putar tugas berat yang dipasangkan dengan RC-120 untuk menebang dan mencabik pokok muda sehingga beberapa inci diameter. Output tork maksimum kotak gear sebanyak 2,252 Nm menyediakan daya bilah yang diperlukan untuk memotong bahan berkayu padat pada kadar yang produktif, dengan perumah besi mulur menyediakan ketegaran struktur untuk menyerap hentakan bilah bertenaga tinggi berulang tanpa retak atau berubah bentuk di bawah penggunaan komersial yang berterusan.<\/p>\n<\/div>\n

\"Aplikasi<\/p>\n

RC-120 Rotary Cutter Gearbox Components<\/h2>\n

1. Perumahan Kotak Gear
\nManufactured from high-strength ductile iron to enclose and protect all internal components. The housing absorbs shock loads generated when blades strike field debris, maintains gear oil containment under all operating angles, and provides the structural backbone to which shafts, bearings, and seals are precisely mounted. A Red Oxide primer coating protects the exterior from corrosion in wet and abrasive field conditions encountered daily in agricultural rotary cutting applications.<\/p>\n

2. Gear Serong
\nThe primary power-transmission elements inside the RC-120 rotary cutter gearbox. Precision forged and machine-cut from hardened alloy steel, the bevel gears redirect PTO shaft rotation through 90 degrees to drive the blade spindle, while simultaneously adjusting the output speed and torque according to the selected gear ratio. Precision straight bevel, spiral bevel, and lapped spiral bevel configurations are all available to match the specific performance and noise requirements of the application.<\/p>\n

3. Aci Input
\nAci yang bersambung terus ke talian pacuan PTO traktor. Diperbuat daripada keluli aloi berkarbur untuk kekuatan kilasan maksimum, ia menerima kuasa putaran daripada aci pacuan PTO alat dan memindahkannya ke dalam jaringan gear. Konfigurasi spline standard termasuk enam-spline 1-3\/8 inci dan enam-spline 1-3\/4 inci membolehkan RC-120 bersambung dengan pelbagai model traktor tanpa penyesuaian atau perkakasan tambahan.<\/p>\n

4. Aci Keluaran
\nPositioned at the base of the housing, the output shaft delivers drive power downward to the blade spindle or cutting assembly. Manufactured from carburized alloy steel and dimensioned to handle the high torque loads and repeated impact stress generated during rotary cutting operations. Shaft extensions are available as splined, keyed, or with pin holes, and multiple shaft extension unit configurations are offered to suit different implement blade attachment designs.<\/p>\n

5. Galas
\nISO tapered roller bearings support both the input and output shafts, maintaining precise gear alignment under radial and axial load conditions simultaneously. Bearing quality has a direct effect on gearbox noise level, heat generation, and overall service life. The tapered roller design used in the RC-120 is specifically chosen to handle the combined axial and radial loading environment that bevel gear drives generate during normal rotary cutter operation.<\/p>\n

6. Pengedap Minyak
\nHigh-quality triple-lip spring-loaded seals are fitted around all rotating shafts, creating a three-barrier system that simultaneously prevents gear oil from escaping the housing and blocks mud, water, and abrasive particles from entering and contaminating the lubrication system. Worn seals are among the most common causes of premature rotary cutter gearbox failure, making this triple-lip design a significant upgrade over single-lip alternatives. Viton seal and cartridge seal options are also available.<\/p>\n

7. Pressure Relief Plug and Cast Iron End Caps
\nA pressure relief plug is fitted as standard to prevent internal air pressure from rising and forcing gear oil past the shaft seals as the gearbox warms up during operation. An optional oil level indicator is also available. Precision cast iron end caps close and seal both sides of the housing, creating a fully enclosed, contamination-resistant assembly that protects bearing races and gear tooth surfaces throughout the full operating life of the unit.<\/p>\n

\"Bahagian<\/p>\n

How to Properly Maintain Your Rotary Mower Gearbox<\/h2>\n

Check and Maintain Correct Oil Level
\nBefore each use, verify the rotary cutter gearbox oil level using the sight glass or dipstick. The oil should be at the full mark when the gearbox is in its normal operating position. Running the unit below the correct rotary cutter gearbox oil level causes inadequate bearing and gear lubrication, leading to overheating and accelerated wear. Use gear oil of the grade specified in the service manual and top up with the same oil type already in the unit to prevent compatibility issues.<\/p>\n

Follow a Regular Oil Change Schedule
\nFor new gearboxes, perform the first oil change after approximately 25 hours of operation to flush any metallic particles generated during the break-in period. After that, change the rotary cutter gearbox oil every 100 to 200 hours of use, or at minimum once per season before storing the unit. Contaminated or degraded oil loses its viscosity protection and allows moisture to accelerate internal corrosion, so oil change intervals should never be extended beyond the recommended schedule regardless of how clean the drained oil appears.<\/p>\n

Inspect Seals and Gaskets Regularly
\nExamine the shaft seals and housing gaskets visually each time the gearbox is serviced, looking for oil weeping, caked-on debris indicating a slow leak, or physical cracking of the seal lips. Seal failure allows gear oil to escape and field contamination to enter, dramatically shortening bearing and gear life. Replace any seal showing signs of wear or hardening immediately. Rotary cutter gearbox repair of seal failure is far less expensive when caught early than a full internal rebuild caused by contamination damage.<\/p>\n

Clean the Housing After Every Use
\nRinse or brush accumulated grass, mud, and plant sap from the gearbox housing exterior and shaft seal areas after every mowing session. Vegetation and soil packed around seal areas accelerates lip wear and creates moisture traps that promote rust formation on the housing surface. Keeping the housing clean also makes it easier to spot oil leaks, cracks in the casting, or loose fasteners before they develop into costly failures requiring rotary cutter gearbox rebuild procedures.<\/p>\n

Check Mounting Bolts and Hardware Torque
\nThe high shock load environment of rotary cutting causes mounting hardware to loosen progressively over time. Inspect and re-torque all flange mounting bolts, blade carrier fasteners, and PTO driveshaft connection hardware at the beginning of each season and after any blade strike event severe enough to trigger the overload protection system. Loose mounting bolts allow the gearbox to move under load, introducing misalignment stresses on the input and output shafts that accelerate bearing wear.<\/p>\n

Store the Gearbox Correctly During Off-Season
\nBefore long-term storage, drain and replace the gear oil to remove moisture and metallic particles accumulated during the season. Coat exposed shaft ends with a light film of anti-corrosion grease and store the implement in a dry, covered location. If the gearbox is stored with the output shaft pointing vertically downward, verify that oil is at the correct fill level so the lower bearing race remains submerged. A fresh oil fill going into storage is the single most effective step to prevent internal corrosion during the off-season.<\/p>\n

\"Kotak<\/p>\n

Kerosakan dan Penyelesaian Biasa<\/h2>\n
\n

Excessive Noise or Grinding Sound<\/h3>\n

Punca:<\/strong>\u00a0Worn or damaged bevel gears, incorrect gear backlash, or insufficient rotary cutter gearbox oil level.
\nPenyelesaian:<\/strong>\u00a0Periksa dan betulkan paras minyak terlebih dahulu. Jika bunyi bising berterusan, tanggalkan penutup perumah dan periksa permukaan gigi gear untuk sebarang lubang, spalling, atau keretakan. Laraskan backlash gear mengikut spesifikasi pengilang. Gantikan gear yang haus sebagai sebahagian daripada pembinaan semula kotak gear pemotong berputar jika kerosakan gigi disahkan semasa pemeriksaan.<\/p>\n<\/div>\n

\n

Oil Leaking from Shaft Seals<\/h3>\n

Punca:<\/strong>\u00a0Worn or hardened shaft seal lips, over-pressurized housing due to blocked pressure relief plug, or over-filled oil level.
\nPenyelesaian:<\/strong>\u00a0Clean the shaft area and confirm the leak source. Clear or replace the pressure relief plug. Correct the oil level if over-filled. Replace the faulty seal with a new triple-lip seal. This is the most common rotary cutter gearbox repair task and should be addressed before the next use to prevent contamination.<\/p>\n<\/div>\n

\n

Terlalu Panas Semasa Operasi<\/h3>\n

Punca:<\/strong>\u00a0Low oil level, wrong oil viscosity, blocked housing ventilation, or sustained overload operation.
\nPenyelesaian:<\/strong>\u00a0Check oil level and oil grade. Verify the pressure relief plug is functional and not blocked with debris. If the gearbox is consistently overloaded, select a lower gear ratio or reduce the cutting width. Overheating accelerates seal degradation and leads to bearing failure if left uncorrected over multiple operating sessions.<\/p>\n<\/div>\n

\n

Shaft End Play or Vibration<\/h3>\n

Punca:<\/strong>\u00a0Worn tapered roller bearings, loose bearing preload adjustment, or a bent shaft from a severe blade strike.
\nPenyelesaian:<\/strong>\u00a0Ukur daya putar hujung aci terhadap toleransi pengilang. Laraskan prabeban galas jika berada dalam julat pelarasan. Gantikan galas yang menunjukkan lubang, perubahan warna atau kekasaran pada permukaan yang bergolek. Periksa aci untuk kelurusan. Getaran yang berlebihan akan menghantar daya kerosakan kepada saluran pemacu PTO traktor jika tidak dibetulkan dengan segera.<\/p>\n<\/div>\n

\n

Gearbox Loses Drive (No Blade Rotation)<\/h3>\n

Punca:<\/strong>\u00a0Sheared shear bolt on the overload clutch hub, or a severely worn or broken bevel gear.
\nPenyelesaian:<\/strong>\u00a0First check the shear bolt on the input shaft overload hub and replace it with the correct grade and diameter bolt if sheared. Do not substitute a higher-strength bolt, as this removes overload protection from the gearbox. If the shear bolt is intact, inspect internally for broken gear teeth and proceed with rotary cutter gearbox repair or full replacement as indicated.<\/p>\n<\/div>\n

\n

Milky or Discolored Gear Oil<\/h3>\n

Punca:<\/strong>\u00a0Water contamination through a failed seal, housing crack, or condensation from repeated cold starts.
\nPenyelesaian:<\/strong>\u00a0Drain the contaminated oil completely, flush with clean gear oil, and refill with fresh oil of the correct specification. Identify and replace the failed seal or repair the housing crack before returning the gearbox to service. Water-contaminated gear oil destroys the lubricating film on gear teeth and causes rapid corrosive pitting of bearing races.<\/p>\n<\/div>\n

\n

Cracked or Fractured Gearbox Housing<\/h3>\n

Punca:<\/strong>\u00a0Severe blade strike against a large embedded obstruction, or operation beyond the rated HP and torque limits.
\nPenyelesaian:<\/strong>\u00a0A cracked housing cannot be safely repaired by field welding without complete teardown and internal inspection. If the crack is minor and not through an oil-retaining wall, qualified cast iron welding and pressure testing may restore the housing. In most cases, replacement with a new RC-120 rotary cutter gearbox is the safest and most economical long-term solution.<\/p>\n<\/div>\n

\n

Loose or Slipping PTO Shaft Connection<\/h3>\n

Punca:<\/strong>\u00a0Worn splines on the input shaft or PTO yoke, or incorrect PTO shaft length causing the yoke to slip off the spline under load.
\nPenyelesaian:<\/strong>\u00a0Inspect spline wear on both the gearbox input shaft and the PTO driveline yoke. Replace worn spline components. Verify the PTO shaft is the correct length for the implement-tractor combination and that the safety collar engages fully on the gearbox input shaft before applying power in the field.<\/p>\n<\/div>\n

\"Kotak<\/p>\n

PTO Drive Shaft and Rotary Cutter Gearbox<\/h2>\n

Kotak gear pemotong berputar dan aci PTO bersama-sama membentuk laluan kuasa mekanikal yang lengkap antara enjin traktor dan bilah pemotong di bawah dek alat. Memahami hubungan ini adalah penting bagi sesiapa sahaja yang memilih, memasang atau menservis komponen ini, sama ada membeli kotak gear pemotong berputar 40 HP untuk traktor padat atau kotak gear pemotong berputar 100 HP untuk operasi pemotongan rumput komersial yang besar.<\/p>\n

Aci PTO ialah aci pemacu teleskopik dengan sambungan universal pada setiap hujung yang menghubungkan bebibir output PTO belakang traktor ke aci input kotak gear. Piawaian PTO traktor menetapkan bahawa aci berputar sama ada pada 540 RPM (biasanya pada traktor yang dinilai di bawah 50 HP) atau 1,000 RPM (lebih biasa pada traktor berkuasa kuda yang lebih tinggi), dengan aci berputar ke arah yang ditentukan oleh pengeluar traktor. Aci PTO dilindungi oleh perisai keselamatan plastik yang menghalang sentuhan dengan pemasangan berputar semasa operasi. Kedua-dua perisai dan aci itu sendiri mesti diselenggara dengan betul dan dipadankan dengan kapasiti tork yang diperlukan oleh alat.<\/p>\n

Kotak gear pemotong berputar bersambung terus dari aci Pengambilalihan Kuasa (PTO) traktor terus ke bar pembawa bilah pada paksi menegak. Kotak gear pemotong berputar dan aci PTO memindahkan kuasa dari pengambilalihan kuasa traktor untuk memutar bilah berat mesin pemotong rumput di bawah dek. Kotak gear mengendalikan beban kejutan berimpak tinggi apabila bilah ayun berat melanggar semak tebal, batu atau pokok kecil pada kelajuan operasi. Peristiwa kejutan ini menghasilkan lonjakan tork secara tiba-tiba yang boleh berkali-kali lebih besar daripada tork operasi purata, dan perumah kotak gear, geometri gigi gear dan pemilihan galas semuanya direka bentuk khusus untuk menyerap dan menghilangkan puncak ini tanpa kegagalan.<\/p>\n

Panjang aci PTO adalah penting untuk pemindahan kuasa yang selamat dan cekap. Jika aci terlalu pendek, bahagian teleskopik boleh runtuh sepenuhnya di bawah kenaikan atau penurunan cangkuk tiga titik alat, menyebabkan aci PTO terlepas atau patah. Jika terlalu panjang, aci boleh terkeluar dari kedudukan teleskopiknya, menghalang cangkuk daripada terangkat sepenuhnya. Panjang aci yang betul ditentukan dengan mengukur dimensi termampat dan lanjutan untuk kombinasi traktor-alat tertentu dan mengesahkan terdapat pertindihan yang mencukupi pada kedua-dua kedudukan. Kebanyakan pengeluar alat menetapkan pertindihan aci minimum sekurang-kurangnya satu pertiga daripada panjang termampat.<\/p>\n

For optimum gearbox performance, the PTO driveshaft operating angle should be kept as small as possible during field operation. Excessive universal joint operating angles create velocity fluctuations in the driveshaft rotation that are transmitted as vibration and torque pulsation into the gearbox input shaft. These pulsations accelerate bearing wear, promote gear tooth surface fatigue, and increase noise levels. Setting up the implement so the driveshaft runs as straight as practicable between the PTO output and the gearbox input is one of the most effective and lowest-cost ways to extend gearbox service life considerably.<\/p>\n

Perlindungan beban lampau antara aci PTO dan input kotak gear disediakan sama ada oleh hab bolt ricih yang dipasang pada aci input kotak gear, atau klac gelincir yang digabungkan ke dalam pemasangan aci pemacu PTO. Jenis bolt ricih menggunakan bolt keluli kekuatan rendah yang patah pada tork yang ditetapkan, menghentikan penghantaran kuasa serta-merta. Jenis klac gelincir membolehkan pemacu tergelincir pada had tork yang ditetapkan, memberikan perlindungan berterusan tanpa memerlukan penggantian bolt selepas setiap kejadian. Transmisi CMN mengesyorkan sentiasa beroperasi dengan peranti perlindungan beban lampau yang sesuai dan jangan sekali-kali memintas bolt ricih dengan menggantikan gred yang lebih kuat, kerana berbuat demikian memindahkan titik kegagalan dari peranti korban ke komponen dalaman kotak gear atau aci PTO traktor.<\/p>\n

Memadankan penarafan tork aci PTO dengan tork maksimum yang dinilai pada kotak gear adalah semakan spesifikasi kritikal terakhir. Apabila memilih bahagian kotak gear pemotong putar termasuk aci PTO gantian, sahkan bahawa kapasiti tork yang disenaraikan pada aci memenuhi atau melebihi output tork maksimum RC-120 pada nisbah gear yang dipilih. Menggunakan aci PTO bersaiz kecil pada kotak gear pemotong putar 60 HP atau aplikasi penarafan kotak gear pemotong putar 75 HP adalah punca biasa keretakan aci yang membahayakan kedua-dua peralatan dan pengendali semasa operasi lapangan.<\/p>\n\n\n\n
\"Kotak<\/td>\n\"Aci<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mengapa Memilih Kotak Gear Pemotong Rotary Transmission CMN?<\/h2>\n

Korea CMN Transmission Co., Ltd. was established in 2000 and is headquartered in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, South Korea. With more than 100 factory employees dedicated to the research, development, manufacturing, sales, and after-sales service of agricultural power transmission equipment, CMN Transmission has spent over two decades building a reputation as one of the most trusted rotary cutter gearbox manufacturers in the global agricultural machinery industry. With an annual production volume exceeding 500,000 units, CMN consistently delivers reliable performance and long-term durability for OEM and aftermarket customers across every major agricultural market worldwide.<\/p>\n

Rangkaian produk CMN merangkumi spektrum lengkap aplikasi kotak gear pertanian: kotak gear pemotong berputar, kotak gear penanam putar, kotak gear pengadun suapan, kotak gear pemotong rumput putar, kotak gear penyebar baja, kotak gear pemotong flail, kotak gear penggali pasang lubang, kotak gear pembalut bulat, kotak gear pembalut segi empat sama, kotak gear pemotong cakera, kotak gear pengairan pangsi tengah, kotak gear pemacu hidraulik, kotak gear mesin silaj, kotak gear penyembur dusun, kotak gear penyapu putar, kotak gear penuai gabungan, kotak gear penyimpanan bijirin dan pengangkutan bijirin, kotak gear pengepala jagung, kotak gear palang pemotong, kotak gear makanan ayam dan kotak gear pertanian tersuai yang meliputi hampir seribu spesifikasi. Produk ini menyediakan peralatan merentasi penuaian bijirin, jentera makanan ternakan, mesin pemotong rumput, pembalut, penyapu, penanam putar, penyebar baja, penyembur, pengadun makanan, mesin silaj dan penuai gabungan di seluruh dunia.<\/p>\n

CMN Transmission holds CE, ISO 9001 Quality Management, Environmental Management, and Occupational Health and Safety certifications, giving procurement managers and equipment dealers the compliance documentation required for regulated markets without additional testing burden. Products are exported to the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, China, India, Thailand, Vietnam, Turkey, Australia, New Zealand, and more than 40 additional destinations worldwide, supported by a logistics network with extensive experience navigating agricultural equipment customs classifications and phytosanitary requirements in every major export market.<\/p>\n

\"Pengilang<\/p>\n

Soalan Lazim<\/h2>\n

Q: What oil type and how much oil does the RC-120 rotary cutter gearbox require?<\/strong>
\nA: RC-120 mempunyai kapasiti minyak gear sebanyak 60 oz. (1.8 liter). Kebanyakan kotak gear pemotong putar menggunakan minyak gear SAE 90 atau SAE 140, walaupun sesetengah pengeluar mengesyorkan minyak gear pelbagai gred seperti 80W-90. Sentiasa periksa spesifikasi pengeluar kotak gear dan elakkan mencampurkan jenis minyak yang berbeza. Mengekalkan paras minyak kotak gear pemotong putar yang betul adalah penting untuk mengelakkan terlalu panas dan haus pramatang. Periksa paras minyak sebelum setiap penggunaan dan tukar minyak selepas 25 jam pertama pada unit baharu, kemudian setiap 100 hingga 200 jam operasi selepas itu.<\/p>\n

Q: Is the RC-120 a direct replacement for the Omni RC-120 gearbox?<\/strong>
\nA: Yes. The CMN Transmission RC-120 Rotary Cutter Gearbox is designed as a direct bolt-on replacement for the original Omni RC-120 gearbox. It matches the OEM mounting bolt pattern, flange dimensions, input shaft spline specification, and output shaft dimensions. No modification, drilling, or custom adapters are required for installation. This replacement rotary cutter gearbox meets or exceeds OEM torque and HP ratings, so your implement performs at the same level as it did with the original gearbox.<\/p>\n

Q: What does the rotary cutter gearbox ratio mean and which ratio should I choose?<\/strong>
\nA: Nisbah kotak gear pemotong berputar menerangkan hubungan antara kelajuan aci input (daripada PTO traktor) dan kelajuan aci output (memandu bilah). Nisbah 1:1 bermaksud output berputar pada kelajuan yang sama seperti input. Nisbah 1:1.92 bermaksud output berputar 1.92 kali lebih pantas daripada input, memberikan kelajuan hujung bilah yang lebih tinggi yang sesuai untuk aplikasi kotak gear rumput ringan dan mesin pemotong rumput kemasan. Nisbah 1.21:1 memberikan pengurangan kelajuan dan peningkatan tork, lebih disukai untuk semak lebat, tumbuh-tumbuhan basah atau rupa bumi yang curam. Pilih nisbah yang paling sepadan dengan kelajuan PTO traktor anda dan aplikasi pemotongan sasaran.<\/p>\n

S: Bagaimanakah saya tahu jika kotak gear pemotong putar saya perlu dibina semula atau diganti?<\/strong>
\nA: Signs that a rotary cutter gearbox rebuild or replacement is needed include persistent grinding or growling noise that continues after correcting the oil level, visible gear oil leaks from shaft seal areas despite new seals, excessive output shaft end play beyond manufacturer tolerance, a bent or cracked housing, or complete loss of drive after replacing the shear bolt. If the internal gears show pitting, spalling, or chipped teeth on inspection, a full rotary cutter gearbox rebuild is required. In many cases, when the housing is cracked or heavily worn, purchasing a replacement RC-120 gearbox from CMN Transmission is more economical than a full internal rebuild.<\/p>\n

Q: Can I use this gearbox on a 40 HP, 60 HP, 75 HP, or 100 HP tractor?<\/strong>
\nA: The RC-120 is rated for 51 to 161 HP, so it is appropriate for 60 HP, 75 HP, and 100 HP rotary cutter gearbox applications within that range. It is above the rated range for a 40 HP rotary cutter gearbox application, where a smaller RC-series model would be more suitable. Operating a gearbox below its rated HP does not cause damage, but selecting the correct HP rating ensures the gear tooth size, bearing capacity, and housing strength are properly matched to the load being transmitted. Contact CMN Transmission to confirm the correct model for your specific tractor HP and implement type before ordering.<\/p>\n

Q: What causes rotary cutter gearbox oil leaks and how do I fix them?<\/strong>
\nA: Rotary cutter gearbox oil leaks most commonly originate from worn or hardened shaft oil seals, a blocked pressure relief plug causing internal overpressure, an over-filled oil level, or hairline cracks in the housing. To fix a shaft seal leak: drain the oil, remove the seal, clean the shaft and bore, press in a new triple-lip seal, refill to the correct oil level, and check that the pressure relief plug moves freely. For a cracked housing, consult a casting repair specialist or replace the gearbox. Always correct a seal leak before the next use to prevent contamination from entering and causing accelerated internal wear.<\/p>\n

Q: What rotary cutter gearbox parts are available for the RC-120?<\/strong>
\nA: CMN Transmission offers a range of rotary cutter gearbox parts for the RC-120, including replacement seal kits (triple-lip shaft seals), tapered roller bearing sets, bevel gear pairs, input and output shaft assemblies, pressure relief plugs, and end cap gaskets. Blade hub kits and seal protector hubs are also available as optional accessories. When ordering replacement parts, always specify the model number and ratio of your gearbox to ensure compatibility. Keeping a basic seal kit and bearing set on hand reduces downtime when scheduled maintenance reveals worn components during the operating season.<\/p>\n

Q: How long does delivery take and does CMN ship internationally?<\/strong>
\nA: CMN Transmission ships the RC-120 Rotary Cutter Gearbox to over 60 countries worldwide from its manufacturing facility in Ansan, South Korea. Delivery times vary by destination: express air freight typically delivers within 7 to 14 business days to major markets including the United States, Canada, the United Kingdom, Germany, France, Australia, and Brazil. Sea freight options are available for bulk orders at lower per-unit cost with longer lead times. CMN handles all export documentation, and units are supplied with CE certification. Contact the sales team for a freight quotation to your specific location and to confirm current stock availability.<\/p>\n

Q: What is the difference between a rotary mower gearbox and a rotary cutter gearbox?<\/strong>
\nA: The terms rotary mower gearbox and rotary cutter gearbox are often used interchangeably in the agricultural industry, as both describe a bevel gear power transmission unit that drives rotating cutting blades on a PTO-powered tractor implement. The distinction, when it exists, is typically one of application weight: a rotary mower gearbox often refers to a unit used on lighter finishing mowers for turf and pasture maintenance, while a rotary cutter gearbox or rotary slasher gearbox implies a heavier-duty unit designed for brush clearing, roadside slashing, and rougher cutting conditions. The RC-120 covers both categories with its 51 to 161 HP rating and five available gear ratios.<\/p>\n

Q: How do I find the correct rotary cutter gearbox for sale that fits my implement?<\/strong>
\nA: To identify the correct rotary cutter gearbox for your implement, you need: (1) the mounting flange bolt hole pattern diameter and number of bolts, (2) the hub pilot diameter, (3) the input shaft spline count and diameter (typically 1-3\/8 inch or 1-3\/4 inch 6-spline for agricultural PTO applications), (4) the output shaft dimensions and attachment interface, and (5) the HP or torque rating required by your implement. If your implement is an Omni RC-120 or equivalent, the CMN RC-120 is the confirmed direct replacement. For other models, share your implement make, model, and the dimensions listed above with the CMN technical team, who can confirm compatibility before you complete your order.<\/p>\n

Q: Can I use synthetic gear oil in my rotary cutter gearbox?<\/strong>
\nA: Yes, synthetic gear oil can be used in the RC-120 if it meets the API GL-4 or GL-5 specification and the viscosity grade recommended for your operating temperature range. Synthetic oils generally provide better thermal stability at high operating temperatures, improved low-temperature flow for cold-start conditions, and longer drain intervals than conventional mineral gear oils. However, never mix synthetic and mineral gear oils in the same gearbox. If switching from mineral to synthetic, drain the old oil completely and flush with a small quantity of the new synthetic before filling to the full mark. Check the rotary cutter gearbox oil level after the first few hours of operation on the new fill to confirm correct level.<\/p>\n

\"Kotak<\/p>\n

Ulasan Pelanggan<\/h2>\n

Travis Holloway, Pasture Management, United States<\/strong>
\n\u201cSaya menggunakan John Deere 90 HP di kawasan padang rumput campuran dan kawasan tebing sungai, dan kotak gear asal pada pemotong Rhino saya rosak selepas tiga musim penggunaan yang berterusan. Menemui pengganti RC-120 ini melalui CMN dan sejujurnya tidak pasti apa yang diharapkan daripada unit selepas jualan pada harga ini. Saya memasangnya dalam masa kira-kira sejam menggunakan corak bolt yang sama, tiada penggerudian, tiada penyesuai, tiada apa-apa. Telah mengendalikannya dengan kuat selama enam bulan sekarang melalui rumput Bermuda yang tebal dan beberapa tepi sungai yang berumput, dan tiada satu pun masalah. Minyak bersih, tiada kebocoran, tiada bunyi pelik. Benar-benar kagum. Akan memesan lagi apabila tiba masanya.\u201d<\/p>\n

Derek Fontaine, Vegetation Management, Canada<\/strong>
\n\u201cKami mengendalikan kontrak pemotongan rumput tepi jalan di Ontario dan membaiki kotak gear lebih pantas daripada kebanyakan yang lain. Saya telah mencuba RC-120 daripada CMN kira-kira setahun yang lalu selepas mendapat cadangan daripada kontraktor lain. Dua unit kami telah menjalankan penggantian CMN selama kira-kira 350 jam setiap satu. Pengedap masih ketat, tiada kehilangan minyak, dan kedua-duanya berjalan pada nisbah 1:1.46 yang sesuai dengan Kubota 100 HP kami untuk rumput campuran dan semak ringan di sepanjang bahu lebuh raya. Pembungkusan dari Korea juga dilakukan dengan sangat baik; tiada kerosakan dalam penghantaran yang telah menjadi masalah dengan pembekal lain. Perkhidmatan cepat memberi respons apabila saya mempunyai soalan tentang pemilihan nisbah. Produk dan pembekal yang benar-benar kukuh.\u201d<\/p>\n

Rodrigo Alves Ferreira, Sugar Cane Operations, Brazil<\/strong>
\n\u201cMembeli ini untuk operasi tebu saya di negeri Sao Paulo. Kami menggunakannya pada traktor 75 HP untuk menyumbat sampah tebu selepas penuaian dan ia mengendalikan beban dengan baik. Nisbah 1:1.21 memberikan kami tork yang kami perlukan tanpa membebankan traktor. Penghantaran ke Brazil mengambil masa kira-kira 3 minggu yang merupakan perkara biasa untuk barangan import di sini, dan kastam tidak menjadi masalah. Satu-satunya sebab saya tidak memberikan lima bintang ialah saya terpaksa mendapatkan minyak gear secara tempatan kerana ia tidak disertakan, yang merupakan perkara biasa tetapi perlu disebut. Semua perkara lain tentang pembelian ini adalah hebat dan saya akan membeli lagi tanpa teragak-agak. Pasukan CMN menjawab soalan pra-jualan saya tentang dimensi aci dengan sangat jelas dan cepat.\u201d<\/p>\n

Klaus-Dieter Brandt, Farm Machinery, Germany<\/strong>
\n\u201cKami menggunakan RC-120 pada mesin pemotong flail kami dengan traktor 120 HP, terutamanya untuk menyembur margin padang dan semak lindung nilai. Dari segi kualiti, kotak gear memberikan kesan yang sangat kukuh; perumah besi tuang nodular dihasilkan dengan baik dan pengedapnya dipasang dengan sempurna. Tiada kebocoran minyak selepas musim pertama, tiada bunyi bising, tiada apa-apa. Pada mulanya saya mempunyai kebimbangan kerana pengeluar Korea, tetapi CMN jelas melebihi jangkaan. Komunikasi dalam bahasa Inggeris adalah mudah, dan penghantaran ke Jerman mengambil masa 12 hari bekerja melalui DHL Express. Amat disyorkan untuk sesiapa sahaja yang mencari kotak gear gantian yang kukuh.\u201d<\/p>\n

Brendan Carrick, Pasture Maintenance, Australia<\/strong>
\n\u201cSaya menguruskan kira-kira 400 hektar kawasan kandang biri-biri di New South Wales dan penyelenggaraan padang rumput tidak pernah berhenti. Kotak gear asal saya pada mesin pemotong McConnel telah memuatkannya pada pertengahan musim tepat pada masanya saya paling memerlukannya. CMN menyediakan RC-120 dengan segera dan pasukan sokongan mereka mengesahkan spesifikasinya sepadan dengan unit saya sebelum saya membuat pesanan. Ia tiba dalam 10 hari bekerja, yang lebih cepat daripada yang saya jangkakan untuk penghantaran ke wilayah NSW. Pemasangan mengambil masa kurang daripada sejam. Itu 8 bulan yang lalu dan saya mungkin telah melakukan 180 jam operasi sejak itu dalam segala-galanya daripada kikuyu kering hingga rai basah. Penglibatan gear lancar, tiada gegaran pada aci output, dan pengedap tahan dengan sempurna dalam keadaan paddock berdebu.\u201d<\/p>\n

Hernan Gomez Vargas, Sugar Cane Farm, Colombia<\/strong>
\n\u201cSaya membeli RC-120 untuk menggantikan kotak gear asal pada pemotong berputar saya yang kami gunakan di ladang tebu di Tolima. Kami telah menjalankannya pada kapasiti penuh selama 4 bulan dan setakat ini tiada masalah. Kami memasangnya sendiri mengikut arahan yang dihantar oleh CMN kepada kami melalui e-mel. Saya sangat menyukai pasukan jualan yang menjawab soalan saya melalui e-mel dengan cepat dan mengesahkan bahawa model itu serasi dengan mesin saya sebelum saya membuat pesanan. Penghantaran mengambil masa 3 minggu ke Colombia, yang mana tidak mengapa. Harganya sangat kompetitif untuk kualiti yang ditawarkannya. Saya telah mengesyorkan produk ini kepada petani lain di rantau ini.\u201d<\/p>\n

Simon Partridge, Roads Maintenance, United Kingdom<\/strong>
\n\u201cSaya bekerja untuk pihak berkuasa jalan raya kerajaan tempatan di Lincolnshire dan kami mengekalkan kira-kira 600 km pinggir luar bandar setiap tahun. Kami telah menyeragamkan RC-120 daripada CMN untuk armada pemotong traktor kami sejak dua tahun lalu. Daripada 11 unit yang telah kami beli setakat ini, tiada satu pun yang memerlukan panggilan jaminan. Ketekalan kualiti antara kelompok adalah sesuatu yang kami uji secara khusus sebelum memberikan komitmen kepada pembekal ini secara besar-besaran, dan CMN lulus. Dokumentasi eksport dan kertas kerja pematuhan CE mereka juga lengkap dan betul pada permintaan pertama, yang sangat penting untuk proses perolehan kami. Bagi mana-mana pihak berkuasa tempatan atau kontraktor yang mencari pembekal kotak gear pemotong berputar yang boleh dipercayai, saya akan menunjukkan mereka kepada CMN tanpa teragak-agak.\u201d<\/p>\n

Manuel Diaz Moreno, Sunflower and Cereal Stubble, Spain<\/strong>
\n\u201cSaya telah bekerja dengan pemotong berputar di Andalusia selama bertahun-tahun, dan saya sentiasa mencari alat ganti yang berkualiti pada harga yang berpatutan. RC-120 daripada CMN Transmission adalah tepat seperti itu. Kami memasangnya pada pemotong 90 kuasa kuda untuk membersihkan bunga matahari dan tunggul bijirin selepas penuaian. Nisbah 1:1.92 sesuai untuk kami untuk kerja itu. Kemasan badannya bagus, pengedapnya diselaraskan dengan baik dari kilang, dan ia tidak membocorkan sebarang minyak dalam 120 jam pertama penggunaan. Perkhidmatan teknikal CMN menyelesaikan soalan yang kami ada tentang paras minyak yang betul dalam masa kurang daripada 2 jam melalui e-mel. Sangat berpuas hati dengan pembelian dan layanan yang diterima daripada pasukan jualan.\u201d<\/p>\n

Suresh Patel, Pemotongan Padi dan Tangkai Gandum, India<\/strong>
\n\u201cDi ladang kami, kami menggunakan kotak gear RC-120 ini pada pemotong berputar dengan traktor 60 HP, yang digunakan untuk memotong batang padi dan rumput. Kotak gear ini agak mudah dipasang, dan pasukan CMN menjawab soalan kami sepanjang keseluruhan proses. Tiada masalah dalam tempoh tiga bulan pertama. Kotak gear lama kami rosak dalam 2 musim; melihat kualiti yang baharu ini, nampaknya ia akan tahan lebih lama. Saya akan mengesyorkan CMN. Pembungkusannya juga sangat baik, tiada kerosakan, dan masa penghantaran adalah berpatutan.\u201d<\/p>","protected":false},"excerpt":{"rendered":"

The RC-120 Rotary Cutter Gearbox Replacement for Omni RC-120 Gearbox is a premium-grade power transmission unit engineered specifically for agricultural machinery across demanding field environments. Designed to serve as a direct drop-in replacement for the OEM Omni RC-120 gearbox, this unit is primarily used to drive rotary knives and cutting assemblies for efficient vegetation management operations, including grass cutting, straw crushing, and brush clearing. Rated from 51 to 161 HP and delivering torque between 803 and 2,252 Nm, it converts the high-speed rotation of a tractor PTO shaft (540 or 1,000 RPM) into stable, high-torque output suitable for even the heaviest cutting loads.<\/p>","protected":false},"featured_media":7849,"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-7960","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\/ms\/wp-json\/wp\/v2\/product\/7960","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/comments?post=7960"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/media\/7849"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/media?parent=7960"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/product_brand?post=7960"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/product_cat?post=7960"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/ms\/wp-json\/wp\/v2\/product_tag?post=7960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}