Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/8 in. 6-spline input shaft and a 2 in. 15-spline output shaft for standard fitment. Operates at a maximum of 540 RPM with a 1:1.46 gear ratio and bevel gear design for efficient torque conversion. The input shaft can rotate clockwise or counter-clockwise for versatile installation. Designed for 5, 6, and 7 ft. rotary cutters with 75 HP compatibility. Mounting features 4 holes with a 3/4 in. size on an 8 in. bolt pattern.
Installation Tip: After installing the pan and blades onto the gearbox, ensure the blades when turned back toward the gearbox shaft do not hit the shaft or nut but clear them before using the rotary cutter.
Maintain reliable power transmission in rotary mower applications with this 125 HP tall square gearbox. Designed for demanding agricultural use, it provides efficient transfer of power from the PTO driveline to cutting components while supporting dependable field performance.
Featuring a 1-3/8 in. 6-spline input shaft and a 2 in. output shaft, this gearbox is engineered for heavy-duty operation. The 1:1.46 gear ratio helps deliver efficient performance for rotary mower and cutter applications. Hub not included.
Replace worn or damaged rotary mower gearboxes with this complete gearbox assembly featuring pre-installed input and output shafts. Designed for demanding rotary cutter applications, this ready-to-install gearbox eliminates the need for separate shaft installation.
Built with heavy duty cast construction for reliable strength and long lasting service life in demanding rotary mowing operations. Features a splined input shaft for PTO connection and a keyed output shaft for blade mounting. The 90-degree gear reduction design efficiently transfers power from the horizontal PTO input to the vertical blade shaft output. A dependable complete replacement solution to restore your rotary mower to full operational condition.
Product Detail
Brand
Grizzly
Eurocardan Part #
RW-61T-F
Style
Complete Rotary Mower Gearbox Assembly with Shafts
Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/4 in. 20-spline input shaft and a 2 in. 15-spline output shaft for standard fitment. **Operates at a maximum of 540 RPM** with a 1:1.46 gear ratio for efficient torque conversion. The input shaft can rotate clockwise or counter-clockwise for versatile installation. Designed for 5, 6, and 7 ft. rotary cutters with 75-90 HP compatibility. **Mounting features 4 holes with a 3/4 in. size on an 8 in. bolt pattern with 5.5 in. clearance for the output cap.** Comes complete with castellated nut and carrier hub for stump jumper installation. Manufacturer Part Number: RW-710-20S.
Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/8 in. 6-spline input shaft and a 2 in. 15-spline output shaft for standard fitment. Operates with a 1:1.46 gear ratio for efficient torque conversion in counter-clockwise rotation. Designed for 5, 6, and 7 ft. rotary cutters with 75-90 HP compatibility. Mounting features 4 holes with a 3/4 in. size on an 8 in. bolt pattern with 5.5 in. clearance for the output cap. Comes complete with castellated nut and carrier hub for stump jumper installation. Manufacturer Part Number: RW-710-6S.
Restore reliable power transfer to your dual spindle rotary cutter with this heavy duty replacement center gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features 1-3/8 in. 6-spline input and output shafts for standard PTO and second-stage gearbox fitment. Operates at a maximum of 540 RPM with a 1:1.21 gear ratio and bevel gear design for efficient torque conversion. Designed for 8 and 10 ft. dual spindle rotary cutters with 100 HP compatibility. Mounting features 4 holes with a 5/8 in. size on a 6 in. x 3-1/4 in. bolt pattern. A direct replacement for center gearboxes on heavy duty 10 ft. mowers. Manufacturer Part Number: RW61T.
Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/8 in. smooth input shaft and a 2 in. 15-spline output shaft for standard fitment. Operates at a maximum of 540 RPM with a 1:1.46 gear ratio and bevel gear design for efficient torque conversion. The input shaft can rotate clockwise or counter-clockwise for versatile installation. Designed for 5, 6, and 7 ft. rotary cutters with 75 HP compatibility. Mounting features 4 holes with a 3/4 in. size on an 8 in. bolt pattern. Manufacturer Part Number: RW-610.
Restore reliable power transfer to your post hole digger with this durable auger gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance.
Features a 1-1/4 in. smooth input shaft and a 2 in. smooth output shaft for standard fitment. Includes a bevel gear system with a 3.18:1 gear ratio for efficient torque conversion. Compatible with up to 57 HP for demanding digging applications. Manufacturer Part Number: RW-500.
Replace worn or damaged gearboxes on your rotary mower with this complete 55 HP rated gearbox assembly featuring a smooth input shaft. Designed for medium duty rotary cutter applications requiring reliable power transmission and long service life.
Built with heavy duty cast construction for reliable strength and impact resistance in demanding rotary mowing operations. Features a smooth input shaft (for keyed PTO connection) and a splined output shaft for blade mounting. The 90-degree gear reduction design efficiently transfers power from the horizontal PTO input to the vertical blade shaft output. Rated for 55 HP operation, this gearbox is ideal for 5-6 ft. rotary cutters and medium duty agricultural applications.
Product Detail
Brand
Grizzly
Style
90-Degree Rotary Mower Gearbox with Smooth Input Shaft
Restore reliable power transfer to your post hole digger with this durable auger gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance.
Features a 1-1/4 in. smooth input shaft and a 2 in. smooth output shaft for standard fitment. Includes a bevel gear system with a 2.92:1 gear ratio for efficient torque conversion. Compatible with 30-45 HP for standard post hole digging applications. Uses 90 weight gear oil for lubrication. Manufacturer Part Number: RW-260.
Installation & Oil Fill Tip:
To properly fill with oil, remove the 1/4 in. plug at the rear of the gearbox and pour 90 weight gear oil through the top plug until it starts running out of the 1/4 in. plug. Replace and tighten the plug snugly.
Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/8 in. smooth input shaft and a 1-1/2 in. 12-spline output shaft for standard fitment. Operates at a maximum of 540 RPM with a 1:1.93 gear ratio and bevel gear design for efficient torque conversion. Designed for 4, 5, and 6 ft. rotary cutters with 35-45 HP compatibility. Mounting features 4 holes with a 5/8 in. size on a 6-3/4 in. bolt pattern. Manufacturer Part Number: RW-300.
Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/8 in. smooth input shaft and a 1-1/2 in. 12-spline output shaft for standard fitment. Operates at a maximum of 540 RPM with a 1:1.47 gear ratio and bevel gear design for efficient torque conversion. The input shaft can rotate clockwise or counter-clockwise for versatile installation. Designed for 4, 5, and 6 ft. rotary cutters with 40 HP compatibility. Fits many brands of mowers.
Mounting features 4 holes with a 5/8 in. size on a 6-3/4 in. bolt circle, with 4-3/4 in. distance between mounting holes and a 3/8 in. mounting base thickness. Stands 9 inches tall overall. Uses 90 weight gear oil (not included). The input shaft snap ring is included and located in the plastic tube attached to the shaft. Manufacturer Part Number: RW-300.
Restore reliable power transfer to your rotary cutter with this heavy duty replacement gearbox. Built with a ductile iron housing for long lasting strength and dependable field performance in demanding mowing applications.
Features a 1-3/8 in. 6-spline input shaft and a 1-1/2 in. 12-spline output shaft for standard fitment. Operates at a maximum of 540 RPM with a 1:1.47 gear ratio and bevel gear design for efficient torque conversion. Designed for 4, 5, and 6 ft. rotary cutters with 35-45 HP compatibility. Mounting features 4 holes with a 5/8 in. size on a 6-3/4 in. bolt pattern.
**Installation Tip:** After installing the pan and blades onto the gearbox, ensure the blades when turned back toward the gearbox shaft do not hit the shaft or nut but clear them before using the rotary cutter.
Manufacturer Part Number: RW-300-6S.
Product Detail
Bevel
Yes
Brand
Grizzly
Capacity
40 HP
Description
Mounting Pattern: (4) 3/4 in. Holes - 8 in. Pattern - 5.5 in. Center
Get your fertilizer spreader back in working order with this 1:1 ratio replacement gearbox. Designed as a direct replacement for damaged or worn out spreader gearboxes, this unit restores full spreading performance to your equipment.
Features a 1-3/8 in. 6-spline input shaft and a 1 in. output shaft for reliable power transfer. Equipped with 6 mounting holes for secure installation and a grease zerk for easy lubrication and long lasting operation.
Restore reliable blade mounting on your rotary mower with this durable replacement blade hub. Designed to fit 75 HP gearboxes with a 2 in. 15-spline output shaft for secure and stable blade retention during demanding mowing operations.
Built for compatibility with both 1-3/8 in. smooth input and 1-3/8 in. spline input gearbox setups. A dependable replacement to keep your rotary mower running efficiently. Manufacturer Part Number: RW610.
Replace worn or damaged input shafts in your RW610 rotary mower gearbox with this durable replacement input shaft. Designed specifically to fit the RW610 gearbox assembly, ensuring reliable power transmission from the PTO shaft to the gearbox internal gears.
Built from heavy duty hardened steel construction for reliable strength and long lasting service life in demanding rotary mowing operations. Precision-machined splined end connects to the PTO shaft for smooth power transfer. Features integrated bearing surfaces and keyway for secure engagement with the input gear. A dependable replacement to keep your RW610 gearbox operating efficiently.
Replace worn or damaged input gears in your rotary mower gearbox with this durable replacement input gear. Designed specifically to fit the SKU 89752 gearbox assembly, ensuring reliable power transmission from the PTO to the cutting blades.
Built from heavy duty hardened steel construction for reliable strength and long lasting service life in demanding rotary mowing operations. Precision-machined tooth profile ensures smooth engagement and reliable power transmission. A dependable replacement to keep your rotary mower gearbox operating efficiently.
Maintain safe and reliable operation of your rotary mower with this durable steel blade hub. Designed for use with RW-300 gearboxes, this hub delivers consistent blade retention during demanding mowing applications.
Built from steel for long lasting strength with a 1/4 in. lip from the center for additional stability. Features a 12-spline center with slightly tapered splines for secure shaft engagement. A dependable replacement to keep your mower running efficiently. Manufacturer Part Number: RW-300.
Replace worn or damaged output gears in your rotary mower gearbox with this durable replacement output gear. Designed specifically to fit the SKU 89752 gearbox assembly, ensuring reliable power transmission from the gearbox to the cutting blade shaft.
Built from heavy duty hardened steel construction for reliable strength and long lasting service life in demanding rotary mowing operations. Precision-machined tooth profile ensures smooth engagement with the input gear and reliable power transmission to the blade shaft. A dependable replacement to keep your rotary mower gearbox operating efficiently.
Maintain safe and reliable operation of your gearbox with this durable brass pressure relief plug. Compatible with all RW gearboxes, this universal replacement part helps protect the unit from internal pressure buildup during demanding field operations.
When gearbox pressure exceeds the designed limit, the relief vent allows excess pressure to escape, helping prevent damage and ensure uninterrupted operation. The plug also helps flush harmful debris from the housing. Built with a hex-shaped mid-section for easy installation and a rounded top for clean finish.
Secure your rotary mower gearbox assembly with this durable castle nut. Designed for rotary mower gearboxes, this nut features a slotted top that allows a cotter pin to lock the nut in place for vibration-resistant retention.
Built with fine thread and a wide 2 in. base for secure and stable fitment. A dependable replacement to keep your gearbox assembly tight and reliable in demanding mowing operations.
Maintain reliable equipment performance with this replacement input shaft seal designed for compatible RW500 post hole digger applications. The seal helps protect internal components by supporting proper sealing around the input shaft and reducing the potential for lubricant leakage and contaminant entry.
Manufactured as a direct replacement component, this input shaft seal is designed to fit compatible RW500 equipment and assist in maintaining dependable operation during routine maintenance and repair procedures.
Maintain reliable equipment performance with this replacement output shaft seal designed for compatible RW500 post hole digger applications. The seal helps protect internal components by supporting proper sealing around the output shaft and reducing the potential for lubricant leakage and contaminant entry.
Manufactured as a direct replacement component, this output shaft seal is designed to fit compatible RW500 equipment and assist in maintaining dependable operation during routine maintenance and repair procedures. Manufacturer Number: RW-208.
Maintain dependable gearbox performance with this replacement input shaft seal designed for compatible RW300 gearboxes. Proper shaft sealing is essential for helping retain lubrication and preventing contaminants from entering critical gearbox components during operation.
This input shaft seal is manufactured as a direct replacement component for select RW300 gearboxes and supports reliable operation in demanding agricultural applications. It is designed to assist with routine maintenance and repair procedures to help extend gearbox service life and performance. Model number: RW-201.
Maintain reliable gearbox operation with this replacement output shaft seal designed for compatible RW300 gearboxes. Proper shaft sealing helps retain lubricant within the gearbox while reducing the risk of contaminants entering critical internal components.
Manufactured as a direct replacement component, this output shaft seal is designed for use with select RW300 gearboxes and supports dependable performance in agricultural equipment applications. It is an ideal service part for routine maintenance and gearbox repairs.
