Sumitomo CNHJ-6120Y-87 PA021857 NSNB Gear Reducer
The Sumitomo CNHJ-6120Y-87 PA021857 NSNB Gear Reducer is an industrial speed reducer for controlled motion and torque multiplication. It is identified by the CNHJ-6120Y-87 model reference, PA021857 number and NSNB designation. The reducer has a ratio of 87 to 1. It is designed for inline mounting. The unit provides high torque and stable speed reduction in compatible equipment.
Gear Reducer Design
The reducer uses hardened gears and heavy duty bearings. The housing protects internal parts from dust, moisture and impact. Seals retain lubricant and keep contaminants out. The output shaft and mounting flange are machined for accurate fit. The inline design simplifies coupling to a motor and driven machine. Correct alignment during installation helps reduce vibration, noise and wear.
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 belt conveyors, screw conveyors, mixers, agitators, feeders, packaging machinery, material handling and production lines. The reducer is suitable for industries such as mining, cement, food processing, wastewater treatment, chemical processing and general manufacturing. It can be used in new equipment or as a replacement in compatible systems.
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 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 CNHJ-6120Y-87 PA021857 NSNB Gear Reducer is a robust speed reduction unit 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.
