A Rotary Mower Gearbox is a crucial mechanical component designed to transfer power from the tractor's power take-off (PTO) to the mower blades, enabling efficient cutting of grass, weeds, and other vegetation. It plays a vital role in agricultural, commercial, and residential mowing equipment by ensuring smooth operation, durability, and performance under various conditions. These gearboxes are engineered to handle high torque and rotational speeds, making them essential for maintaining large lawns, fields, and landscapes.
Our Rotary Mower Gearbox is available in multiple models to suit different applications. Below is a detailed table of specifications:
| Model | Input RPM | Output RPM | Gear Ratio | Max Torque (Nm) | Weight (kg) | Material |
|---|---|---|---|---|---|---|
| RMG-100 | 540 | 1800 | 3.33:1 | 250 | 15 | Cast Iron |
| RMG-200 | 540 | 2000 | 3.70:1 | 300 | 18 | Cast Iron |
| RMG-300 | 1000 | 2400 | 2.40:1 | 400 | 22 | Hardened Steel |
| RMG-400 | 540 | 2200 | 4.07:1 | 350 | 20 | Cast Iron |
Rotary mower gearboxes are widely used in various settings, including:
What is the typical lifespan of a rotary mower gearbox?
The lifespan depends on usage, maintenance, and operating conditions. With proper care, such as regular lubrication and avoiding overload, it can last 5-10 years or more. Harsh environments may reduce this period.
How often should I lubricate the gearbox?
It is recommended to check and lubricate the gearbox every 50-100 hours of operation. Use high-quality gear oil specified in the manual to ensure optimal performance and prevent wear.
Can I replace the gearbox myself, or do I need a professional?
If you have mechanical experience and the right tools, you can replace it by following the manufacturer's instructions. However, for safety and warranty purposes, consulting a professional is advised.
What are the signs that my gearbox needs replacement?
Common signs include unusual noises (grinding or knocking), leaking oil, difficulty in engaging the PTO, reduced cutting efficiency, or visible damage to the housing or gears.
Is the gearbox compatible with any tractor PTO?
Most gearboxes are designed to standard PTO sizes (e.g., 540 RPM or 1000 RPM), but always verify compatibility with your tractor's specifications before purchase to avoid mismatches.
How do I choose the right model for my mower?
Consider factors like your mower's make and model, required RPM and torque, cutting width, and typical usage. Refer to our product table or consult with our support team for guidance.
What maintenance steps can extend the gearbox's life?
Regularly check oil levels, clean external surfaces to prevent debris buildup, avoid overloading, and store the equipment in a dry place when not in use. Follow the maintenance schedule in the user manual.
Are there waterproof or weather-resistant options?
Yes, our gearboxes feature sealed designs and corrosion-resistant coatings to withstand moisture and outdoor conditions, but avoid submerging them in water to prevent damage.
Can the gearbox be repaired, or must it be replaced entirely?
Minor issues like seal replacements or bearing changes can be repaired by a technician. However, severe damage to gears or housing often requires full replacement for safety and efficiency.
What warranty do you offer on your rotary mower gearboxes?
We provide a standard 2-year warranty against manufacturing defects, covering parts and labor. Ensure proper installation and maintenance to keep the warranty valid.








