{"id":958,"date":"2026-05-28T02:21:35","date_gmt":"2026-05-28T02:21:35","guid":{"rendered":"https:\/\/ever-powers.com\/?post_type=product&p=958"},"modified":"2026-05-28T02:47:43","modified_gmt":"2026-05-28T02:47:43","slug":"rotary-cutter-gearboxes-rc-33-replacement","status":"publish","type":"product","link":"https:\/\/ever-powers.com\/fr\/product\/rotary-cutter-gearboxes-rc-33-replacement\/","title":{"rendered":"R\u00e9ducteurs pour broyeurs rotatifs robustes \u2013 Remplacement RC-33, puissance nominale de 65 CV"},"content":{"rendered":"
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Model: EPT-RC33 \u00a0|\u00a0 Gear Ratio: 1:1.47 \u00a0|\u00a0 For 4 ft, 5 ft & 6 ft Rotary Cutters<\/p>\n

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What Is the RC-33 Rotary Cutter Gearbox?<\/h2>\n

The EPT-RC33 rotary cutter gearbox<\/strong> is a compact, high-torque rotary cutter gearbox replacement<\/em> engineered for 4 ft, 5 ft, and 6 ft brush hog and bush hog decks on tractors rated up to 65 HP<\/strong>. Designed as a direct drop-in for the Omni Gear RC-33, it transfers PTO input through a 1:1.47 bevel gear set<\/strong>, stepping up blade speed for cleaner cuts through heavy grass, saplings, and dense brush.<\/p>\n

The housing is cast from ductile iron<\/strong> \u2014 a material chosen specifically for its higher impact resistance versus grey cast iron, which matters when blades strike hidden rocks or stumps. At 50.6 lbs<\/strong>, the unit is light enough for a two-person field swap while still providing the structural rigidity required for sustained shock loads. A dual-direction output (clockwise or counterclockwise without modifications) makes it compatible with a wider range of OEM and aftermarket cutter decks without sourcing a mirrored variant.<\/p>\n

As a dedicated tractor implement gearbox<\/em> manufacturer, we produce the EPT-RC33 to match OEM bolt patterns (4-3\/4″ adjacent \/ 6-3\/4″ diagonal), shaft dimensions (1-3\/8″ input, 1.57″ 12-spline output), and gear ratio. Whether you are a dealer building replacement parts inventory or an OEM assembler integrating a rotary cutter gearbox replacement<\/em> into a new deck line, the EPT-RC33 slots in with no modifications.<\/p>\n

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Technical Specifications \u2013 EPT-RC33<\/h2>\n
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Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nEPT-RC33 Rotary Cutter Gearbox<\/td>\n<\/tr>\n
Max Horsepower<\/td>\n65 HP<\/td>\n<\/tr>\n
Gear Ratio<\/td>\n1:1.47 (step-up)<\/td>\n<\/tr>\n
Gear Type<\/td>\nBevel Gear<\/td>\n<\/tr>\n
Housing Material<\/td>\nDuctile Iron<\/td>\n<\/tr>\n
Input Shaft<\/td>\n1-3\/8 in. smooth<\/td>\n<\/tr>\n
Output Shaft<\/td>\n1.57 in. \/ 12-Spline<\/td>\n<\/tr>\n
Output Rotation<\/td>\nClockwise or Counterclockwise (no modification needed)<\/td>\n<\/tr>\n
Mounting Holes<\/td>\n4-3\/4 in. on center (adjacent) \u00a0\/\u00a0 6-3\/4 in. on diagonal<\/td>\n<\/tr>\n
Unit Weight<\/td>\n50.6 lbs (22.9 kg)<\/td>\n<\/tr>\n
Compatible Decks<\/td>\n4 ft, 5 ft, and 6 ft rotary cutters<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Rotary Cutter Gearboxes \u2013 Parts Diagram<\/h2>\n
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Rotary Cutter Gearbox Rebuild Kit<\/h2>\n

Before replacing an entire unit, many operators extend the service life of an existing RC-33 with a targeted rotary cutter gearbox rebuild kit<\/em>. A standard kit addresses the components that wear first under field conditions:<\/p>\n