Sumitomo PA020201 CNH-6125Y-87 Worm Gear Reducer
The Sumitomo PA020201 CNH-6125Y-87 Worm Gear Speed Reducer is an industrial gearbox for controlled motion and torque multiplication. It is identified by the PA020201 and CNH-6125Y-87 references. The reducer has a ratio of 87 to 1. It uses a worm gear design to provide high reduction in a compact package. The unit provides high torque and stable speed reduction in compatible machinery.
Worm Gear Design
A worm gear reducer uses a worm screw and a worm wheel. The worm drives the wheel at a right angle. This design provides high reduction ratios in a single stage. It also offers quiet operation and smooth transmission. The worm gear may be designed for self locking in some applications. The housing protects internal parts and retains lubricant. Seals keep contaminants out.
Ratio and Performance
The 87 to 1 ratio provides strong speed reduction and torque multiplication. The output speed is calculated by dividing the input speed by 87. The output torque depends on the motor torque, the ratio and the reducer efficiency. Users should compare the required torque, speed and duty cycle with the reducer rating. Overloading can cause gear wear, overheating or premature failure.
Applications
Typical applications include conveyors, mixers, agitators, feeders, packaging machinery, material handling and production lines. The worm gear design is useful where a right angle drive is needed and high reduction is required. The reducer is suitable for industries such as food processing, wastewater treatment, chemical processing and general manufacturing.
Installation Notes
Installation should follow the equipment manual. The mounting base should be stable and flat. The motor shaft and reducer input must be aligned carefully. Couplings must be aligned to avoid extra load on bearings and gears. Bolts should be tightened evenly and to the correct torque. After installation, check oil level and rotation direction before connecting the load.
Lubrication and Cooling
Correct lubrication is essential for worm gear reducer life. Oil type and level depend on the model, mounting position and operating conditions. Users should check for leaks and maintain the oil level. Oil should be changed according to schedule or analysis. The reducer should have sufficient cooling and airflow. Dust, heat and moisture can reduce service life.
Maintenance
Regular maintenance includes checking oil level, leaks, noise, vibration and temperature. Worn seals should be replaced. Bearings and gears should be inspected during major service. Electrical connections on the motor should be checked for tightness and signs of overheating. Following the service schedule helps maintain reliable operation.
Conclusion
The Sumitomo PA020201 CNH-6125Y-87 Worm Gear Speed Reducer is a robust gearbox for industrial motion control. It provides an 87 to 1 ratio, high torque and stable transmission. Correct selection, installation and maintenance help ensure long service life.




