Rotary Cutter Mower Gearbox Manufacturers
Rotary Cutter Mower Gearbox Manufacturers
If you are looking for a reliable and efficient rotary cutter gearbox for your mower, look no further. Our 40 HP Rotary cutter gearbox with 1-3/8" smooth input shaft and a gear ratio of 1:1.47, is the perfect solution for replacing OEM gearboxes on 4', 5', and some 6' rotary cutters by these manufacturers. The cast iron housing is sealed to protect the gears and bearings, and the mounting plate has four bolt holes spaced 4.75" square. The gearbox has a piloted flange bottom to fit a 5-1/4" pilot hole in the mower/cutter deck.
Technical Information:
- Bolt Pattern: 4-3/4" Square with holes for 5/8" bolt
- Pilot Hole Size: 5-1/4"
- Input Shaft: 1-3/8" Smooth with 1/2 Shear-hole
- Output Shaft: 1-9/16" Tapered 12-spline
- Input Power Max: 40 HP
- Input Speed: 540/1000 RPM
- Shaft Rotation: CCW to CW with 1:1.47 Ratio
Applications:
Our rotary cutter gearbox is specially designed to replace OEM gearboxes on 4', 5', and some 6' rotary cutters by these manufacturers. It is perfect for use in agricultural and industrial settings where reliable and efficient equipment is needed. This gearbox is an essential component of any rotary cutter, as it provides the necessary power to cut through even the toughest of materials.
Advantages:
- Cast iron housing is sealed to protect the gears and bearings
- Piloted flange bottom fits a 5-1/4" pilot hole in the mower/cutter deck
- Four bolt holes spaced 4.75" square for easy installation
- 1-3/8" smooth input shaft with 1/2 shear-hole for optimal power transfer
- 1-9/16" tapered 12-spline output shaft for maximum torque
- Can handle up to 40 HP of power
- Compatible with input speeds of 540/1000 RPM
- Shaft rotation is CCW to CW with a 1:1.47 ratio, making it a versatile option for a variety of cutting applications
Installation, Maintenance, and Repair:
Installing our rotary cutter gearbox is quick and easy, thanks to the four bolt holes spaced 4.75" square. Simply bolt the gearbox onto your cutter deck and you're ready to go. When it comes to maintenance, be sure to regularly check the gearbox for any signs of wear or damage. Regular oil changes are also recommended to keep the gears and bearings lubricated and running smoothly. If you do need to repair the gearbox, our team of experts is available to assist you with any repairs or replacements.
Other Products:
In addition to our rotary cutter gearbox, we also supply a variety of other high-quality plastic and metal gears and components for industrial use. Our products include agricultural gearboxes, power output shafts, sprockets, fluid couplings, worm gear reducers, gears and racks, detachable chains, pulleys and pulleys, planetary gearboxes, timing pulleys, bushings, and more. We pride ourselves on offering high-quality products at competitive prices, and we are committed to providing our customers with exceptional service.
Q&A
- What is a rotary cutter gearbox?
A rotary cutter gearbox is an essential component of any rotary cutter, as it provides the necessary power to cut through even the toughest of materials. - What is the maximum power that the 40 HP Rotary cutter gearbox can handle?
The 40 HP Rotary cutter gearbox can handle up to 40 HP of power. - What is the input speed of the 40 HP Rotary cutter gearbox?
The 40 HP Rotary cutter gearbox is compatible with input speeds of 540/1000 RPM. - How do I install the 40 HP Rotary cutter gearbox?
Installing the 40 HP Rotary cutter gearbox is quick and easy, thanks to the four bolt holes spaced 4.75" square. Simply bolt the gearbox onto your cutter deck and you're ready to go. - What other products does the company supply?
In addition to the rotary cutter gearbox, the company also supplies a variety of other high-quality plastic and metal gears and components for industrial use.
About us

We guarantee top-quality products at the best prices in China! Special orders are welcome, and if you’re interested in any of our products, feel free to reach out for more detailed information. We ensure our products are safe, high-quality, and reasonably priced. Please contact us as soon as possible if you’d like to learn more. We’re eager to cooperate with you!
A large portion of our products is exported to Europe and the Americas, with both standard and custom options available. We can manufacture according to your drawings or samples, using standard materials or as per your specific requirements. Choosing us means choosing reliability.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request

Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly

QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port

Industries We Service
