The gear reducer is an independent component consisting of a gear transmission and a gear-worm transmission enclosed in a rigid shell. It is often used as a reduction transmission device between the prime mover and the working machine, between the prime mover and the working machine or the actuator. It plays the role of matching speed and transmitting torque. So everyone knows what are the reasons why the gear reducer bearings make abnormal noise?

1. The grease in the reducer contains impurities.

2. The lubrication of the reducer is insufficient. For example: the oil level is too low, improper storage, etc. cause oil or grease to leak through the seal.

3. Impurities such as sand or carbon particles are mixed into the bearing, which acts as an abrasive; water, acid, paint and other dirt are mixed into the bearing, which acts as a corrosive agent.

4. The thermal elongation of the shaft is too large, and the bearing is subject to statically indefinite additional axial load.

5. The bearings of the reducer are subject to extra load, the bearings are axially tightened, or there may be two fixed-end bearings on one shaft.

6. The fit between the bearing and the shaft is too loose. The diameter of the shaft is too small or the adapter sleeve is not tightened.

7. The pad iron on the bottom surface of the bearing seat is uneven, resulting in deformation of the seat hole and even cracks in the bearing seat.

8. There are debris in the bearing seat hole.