A reducer is a transmission mechanism that needs to transmit torque to the working machine through shafts and bearings. The bearing is a part of the WPWDS60,WPWDS70,WPWDS80,WPWDS100,WPWDS120 planetary reducer and can support the rotating gear shaft or connecting rod. Therefore, the sliding quality and lifespan of the bearing will affect the overall quality and performance of the planetary reducer. Below, the editor will introduce common causes of bearing noise in planetary reducers. The specific content is as follows.
Planetary reducer
Causes of bearing noise in planetary reducer
1. The grease in the planetary reducer contains impurities.
2. The lubrication of the planetary reducer is insufficient. For example, low oil level, improper storage, etc. may cause oil or grease to leak through the seal.
3. Impurities such as sand or carbon particles are mixed in the bearing to act as abrasive agents; The bearing is mixed with dirt such as water, acids, or paint, which can cause corrosion.
4. The thermal elongation of the shaft is too large, and the shaft is subjected to static and uncertain axial additional loads.
5. The bearings of the gearbox are subjected to additional loads, the shaft is subjected to axial tension, 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 locking sleeve is not tightened.
7. The unevenness of the pad iron on the bottom surface of the bearing seat leads to deformation of the seat hole and even cracks in the bearing seat.
8. There are debris in the bearing seat hole.
9. The position of the oil slinger is not suitable.
10. There are pressure pits on the steel ball or roller.
11. The bearing has noise and external vibration source interference.
12. The bearing discolors and deforms when heated.
13. The bearing is noisy.
14. The bearing seat hole becomes larger, and the non-ferrous metal bearing seat hole is supported or becomes larger due to thermal expansion.
15. The shoulder of the seat hole is too large, causing the sealing element of the bearing to distort.
16. The clearance of the labyrinth seal ring is too small and there is friction with the shaft.
17. The teeth of the lock washer bend and rub against the bearing.
18. The shaft is too thick, causing the actual fit to be too tight (causing excessive bearing temperature or noise).
19. The diameter of the seat hole is too small, which causes the bearing temperature to be too high.
20. The diameter of the bearing seat hole is too large, and the actual fit is too loose.
