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<\/p>\nWhen standard-duty gearboxes are not enough, the RC-145 steps in. Rated from 61 to 171 HP across dual PTO speed settings (540 and 1,000 RPM), this is one of the heaviest caja de engranajes de la toma de fuerza<\/b> units caja de engranajes de la toma de fuerza<\/b> units in our rotary cutter range \u2014 built for commercial brush-clearing contractors, municipal vegetation management fleets, and large-scale ranch operations running 10-foot to 15-foot rotary cutters on 100+ HP tractors. The 1:1.833 bevel gear ratio converts PTO input to 989 RPM (at 540) or 1,833 RPM (at 1,000), delivering blade tip velocities high enough to shred brush, saplings, and scrub timber up to 75-100 mm in diameter.<\/p>\n
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At 120 lbs (54.4 kg), the ductile iron housing reflects the engineering required for sustained high-power service. The 1-3\/4 inch, 20-spline input shaft is the larger PTO standard (as opposed to the 1-3\/8 inch, 6-spline used on smaller gearboxes), matching the output stub on 75+ HP tractors. The 2-1\/4 inch, 18-tooth tapered spline output shaft with threaded end provides the secure, high-torque connection that heavy rotary cutter blade carriers demand. This Caja de engranajes de toma de fuerza agr\u00edcola<\/b> is a direct replacement for the Omni Gear RC-145 with identical mounting (6 bolts on 8-inch bolt circle, 5-5\/8 inch pilot), shaft dimensions, and torque ratings. We also supply matched heavy-duty PTO shafts<\/a> for the 100-170 HP torque range this gearbox operates in.<\/p>\n <\/p>\n <\/p>\n Mayor\u00eda caja de engranajes de la toma de fuerza<\/b> units in the rotary cutter category top out at 65-75 HP. The RC-145 starts where those models end. Three features define this gearbox:<\/p>\n Dual-speed PTO compatibility.<\/b> Unlike smaller gearboxes limited to 540 RPM, the RC-145 operates at both 540 and 1,000 RPM PTO speeds. At 540 RPM, the 1:1.833 ratio delivers 989 RPM output for heavy brush cutting where maximum torque matters more than blade speed. At 1,000 RPM, output climbs to 1,833 RPM \u2014 useful for finish mowing and lighter vegetation where higher blade tip velocity produces a cleaner cut.<\/p>\n 1-3\/4 inch, 20-spline input.<\/b> This is the heavy-duty PTO standard used on tractors from 75 HP upward. The 20-spline connection distributes torque across more contact surfaces than the 6-spline configuration on smaller gearboxes, reducing per-tooth loading and extending spline life under high-torque conditions. The 3-7\/8 inch shaft engagement length provides additional support against bending forces.<\/p>\n 2-1\/4 inch tapered spline output with threaded end.<\/b> The taper locks the blade carrier hub onto the shaft under preload, eliminating the backlash and fretting wear that straight spline couplings can develop under the repeated impact loads of heavy rotary cutting. The threaded end accepts a castle nut and cotter pin for positive retention.<\/p>\n <\/p>\n Contractors clearing overgrown land for development, pipeline right-of-way, or new farm plots use 10-15 foot rotary cutters powered by 120-170 HP tractors. The RC-145 handles the sustained, full-power loading these operations demand \u2014 hour after hour of continuous cutting through brush, saplings, and accumulated vegetation.<\/p>\n Provincial road departments and municipal parks services operate large rotary cutters for maintaining road medians, drainage ditches, levee banks, and utility corridors. The dual-speed capability lets crews switch between 540 RPM for heavy brush passes and 1,000 RPM for finish mowing on maintained grass areas \u2014 using the same caja de cambios de la toma de fuerza del tractor<\/b> and cutter for both tasks.<\/p>\n Ranches managing 50-200+ hectares of pasture need wide-cut rotary mowers to keep vegetation under control during the growing season. The RC-145’s HP range matches the 100-170 HP row-crop and utility tractors that these operations typically own for tillage and haulage, making the rotary cutter a productive attachment on existing equipment rather than requiring a dedicated tractor purchase.<\/p>\n <\/p>\n The RC-145 uses a 6-bolt mounting pattern on an 8-inch diameter bolt circle with a 5-5\/8 inch pilot bore. The centerline distance from input shaft to the mounting surface is 8.9 inches \u2014 verify this clears your cutter deck structure before installation. The gearbox mounts vertically with the input shaft horizontal and the output shaft pointing downward into the cutter housing. Use Grade 8 mounting bolts torqued to the manufacturer specification for your cutter frame material (typically 75-90 ft-lbs for steel decks).<\/p>\n <\/p>\n For buyers deciding between gearbox sizes, here is a quick comparison across the RC rotary cutter caja de engranajes de la toma de fuerza<\/b> range:<\/p>\n <\/p>\n Korea Ever-Power manufactures the RC-145 under ISO 9001:2015-certified quality management. Each unit is individually bench-tested for gear noise, torque capacity, and seal integrity. The ductile iron housing material is certified to ASTM A536 standards. We provide a 12-month warranty covering materials and workmanship, with replacement seals and bearings stocked for immediate dispatch from our Korea warehouse. For the full range of replacement models \u2014 rotary cutters, tillers, mowers, balers, feed mixers, and more \u2014 visit our agricultural gearbox catalogue<\/a>.<\/p>\n <\/p>\nEspecificaciones t\u00e9cnicas<\/h2>\n
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\n \nPar\u00e1metro<\/th>\n Value<\/th>\n<\/tr>\n<\/thead>\n \n Modelo<\/td>\n EPT-RC-145 Rotary Cutter Gearbox<\/td>\n<\/tr>\n \n Relaci\u00f3n de transmisi\u00f3n<\/td>\n 1 : 1.833<\/td>\n<\/tr>\n \n RPM de entrada<\/td>\n 540 \/ 1,000<\/td>\n<\/tr>\n \n RPM de salida<\/td>\n 989 \/ 1,833<\/td>\n<\/tr>\n \n Clasificaci\u00f3n HP<\/td>\n 61 \u2013 171 HP<\/td>\n<\/tr>\n \n Par m\u00e1ximo<\/td>\n 7,117 \u2013 19,950 in.lbs.<\/td>\n<\/tr>\n \n Rotaci\u00f3n<\/td>\n CW input \u2192 CW output<\/td>\n<\/tr>\n \n Eje de entrada<\/td>\n 1-3\/4″ dia. x 3-7\/8″ long, 20T spline<\/td>\n<\/tr>\n \n Eje de salida<\/td>\n 2-1\/4″ dia. 18T tapered spline w\/ threaded end<\/td>\n<\/tr>\n \n Montaje<\/td>\n 6 holes on 8″ dia. bolt circle<\/td>\n<\/tr>\n \n Pilot Diameter<\/td>\n 5-5\/8″<\/td>\n<\/tr>\n \n Centerline Distance<\/td>\n 8.9″ (input shaft to mounting surface)<\/td>\n<\/tr>\n \n Tama\u00f1o general<\/td>\n 14-1\/2″ x 11″ x 11″<\/td>\n<\/tr>\n \n Peso<\/td>\n 120 lbs (54.4 kg)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n What Sets the RC-145 Apart<\/h2>\n
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<\/p>\nWhere This PTO Gearbox Is Used<\/h2>\n
Commercial Land Clearing<\/h3>\n
Municipal and Highway Department Service<\/h3>\n
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<\/p>\nLarge-Scale Ranch Pasture Management<\/h3>\n
\nMounting and Installation Notes<\/h2>\n
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<\/p>\nHow the RC-145 Compares to Smaller Models<\/h2>\n
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\n \nModelo<\/th>\n Rango de HP<\/th>\n Relaci\u00f3n<\/th>\n Eje de entrada<\/th>\n Peso<\/th>\n Cutter Width<\/th>\n<\/tr>\n<\/thead>\n \n RC-30<\/td>\n 40 CV<\/td>\n 1:1.47-1.93<\/td>\n 1-3\/8″ 6-spline<\/td>\n 51 lbs<\/td>\n 4-5 ft<\/td>\n<\/tr>\n \n RC-33<\/td>\n 65 HP<\/td>\n 1:1.47<\/td>\n 1-3\/8″ smooth<\/td>\n 51 lbs<\/td>\n 4-6 pies<\/td>\n<\/tr>\n \n RC-61T<\/td>\n 60 CV<\/td>\n 1:1-1.93<\/td>\n 1-3\/8″ 6-spline<\/td>\n 74 lbs<\/td>\n 5-7 pies<\/td>\n<\/tr>\n \n RC-145<\/b><\/td>\n 61-171 HP<\/b><\/td>\n 1:1.833<\/b><\/td>\n 1-3\/4″ 20-spline<\/b><\/td>\n 120 lbs<\/b><\/td>\n 10-15 ft<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Quality and Certifications<\/h2>\n
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<\/p>\nPreguntas frecuentes<\/h2>\n
Can I run the RC-145 at both 540 and 1,000 RPM PTO?<\/b>
\nYes \u2014 and this is one of its main advantages. At 540 RPM the output is 989 RPM (better for heavy brush). At 1,000 RPM the output is 1,833 RPM (better for finish mowing). Match the PTO setting to your cutting conditions.<\/div>\nMy tractor has a 1-3\/8 inch PTO \u2014 can I use this gearbox?<\/b>
\nNo. The RC-145 requires a 1-3\/4 inch, 20-spline PTO output. Tractors under 75 HP typically have the smaller 1-3\/8 inch PTO. For those tractors, the RC-30 or RC-33 is the correct choice.<\/div>\nHow does this compare to the original Omni Gear RC-145?<\/b>
\nAll shaft dimensions, bolt pattern (6 holes on 8-inch BC), pilot diameter (5-5\/8 inch), and torque ratings are identical. It is a direct bolt-in caja de engranajes de la toma de fuerza<\/b> replacement at 30-50% below OEM pricing.<\/div>\n
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