Planetary reducer is a transmission component, which needs to transmit torque to the working machine through shaft and bearing. The bearing is a part of the planetary reducer and can support the rotating gear shaft or connecting rod. Therefore, the sliding quality and service life of the bearing will affect the overall quality and performance of the planetary reducer. What are the reasons for the bearing noise of the planetary reducer?

1. The lubricating grease in the planetary reducer contains impurities or insufficient lubrication, resulting in oil or grease leakage through the seal.

2. A large number of impurities such as sand or carbon particles are mixed into the bearing to play the role of abrasive; Dirt such as soil moisture, acid or paint is mixed into the bearing to have a corrosive effect.

3. The thermal elongation of the shaft is too large, and the bearing bears static and uncertain additional axial load; The bearing bears additional load and axial tightness, or there are two fixed end bearings on one shaft

4. The bearing and shaft are too loose, the diameter of the shaft is too small, or the fixing sleeve is not tightened; The uneven bottom pad of the bearing seat leads to the deformation of the bearing seat hole and even cracks in the bearing seat.

5. There are some sundries in the bearing seat hole; Improper position of oil return ring; There are pressure pits on the steel ball or steel wheel.

6. Bearing noise, external vibration source interference; Heat discoloration and deformation; The bearing seat hole becomes larger, and the bearing seat hole of non-ferrous metal is enlarged or enlarged due to thermal expansion.

7. The clearance of labyrinth seal ring is too small to produce friction with the shaft; The teeth of the lock washer are bent with the bearing, causing friction.

8. The shaft is too thick, which makes the actual fit too tight; The diameter of the seat hole is too small, resulting in too high temperature of the bearing; The diameter of bearing seat hole is too large and the actual fit is too loose.

The above is an introduction to the causes of the bearing noise of the planetary reducer. Those who need the planetary reducer are welcome to consult the manufacturer of Newgear.