Bearing Noise 30 Reasons, The Strongest Summary!

Bearing noise causes summary of 30 kinds

1. The oil has impurities;

 

2. Insufficient lubrication (too low oil level, improper storage leads to oil or grease leakage through the seal);

3. The bearing clearance is too small or too large (production plant problem);

4. The bearing is mixed with sand or carbon particles and other impurities to play the role of abrasive;

5. The bearing is mixed with water, acid or paint and other dirt to play a corrosive role;

6. The bearing is squeezed flat by the seat hole (the roundness of the seat hole is not good, or the seat hole is not twisted straight);

7. The cushion 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 (residual chips, dust particles, etc.);

9. Eccentric sealing ring (touching adjacent parts and friction);

 

10. Bearing subjected to additional load (bearing subjected to axial crunch, or one shaft with two fixed end bearings);

11. The match between the bearing and the shaft is too loose (the diameter of the shaft is too small or the tightening sleeve is not tightened);

12. The clearance of the bearing is too small, and it is too tight when rotating (the tightening sleeve is too tight);

13. There is noise in the bearing (caused by the end of the roller or the steel ball slipping);

14. Excessive thermal elongation of the shaft (bearing subjected to statically indeterminate axial additional load);

15. The shaft shoulder is too large (touching the seal of the bearing and causing friction);

16. The shoulder of the seat hole is too large (the seal of the bearing is distorted);

17. The clearance of the labyrinth sealing ring is too small (friction with the shaft);

18. The teeth of the lock washer are bent (touching the bearing and causing friction);

 

19. The position of the oil sling ring is not appropriate (touching the flange cover and friction);

20. There is a pressure pit on the steel ball or roller (caused by hitting the bearing with a hammer during installation);

21. Bearing noise (external vibration source interference);

22. Bearing heat discoloration and deformation (caused by the use of spray gun heating disassembly bearings);

23. The shaft is too thick to make the actual fit too tight (resulting in high bearing temperature or noise);

24. The diameter of the seat hole is too small (resulting in high bearing temperature);

 

25. Bearing seat hole diameter is too large, the actual match is too loose (bearing temperature is too high - outer ring slip);

26. The bearing seat hole becomes larger (the non-ferrous metal bearing seat hole is extended, or becomes larger due to thermal expansion);

27. Cage break.

28. Bearing raceway rust.

29. Steel ball and raceway wear (unqualified grinding or product damage).

30. The ring raceway is unqualified (manufacturer's problem).