Roller bearing raceway sounds unusual

Bearing raceway raceway sound and control the sound is running when the bearing, its rolling body raceway rolling issued a slippery continuous sound is unique will happen all the bearings of the basic sound. Sound that is generally bearing raceway sound with other sounds. Greater rigidity of the bearing seat, roll sound pressure level is lower. If the radial clearance is too small, the rolling sound pressure level and the main frequency will decrease as the radial clearance increases dramatically.

roller bearing fatigue failure is a failure surface forms, mainly for fatigue crack initiation, propagation and fracture processes in alternating load faults arising under long-term effects of the metal.

1 .. Overall eccentric bearing low precision approach: use specified levels of precision bearings.

2 .. spindle is bent or housing bore misalignment methods: Repair spindle or cabinet.

3 belt too tight: Adjust the belt so that proper tightness.

4 poor lubrication Methods: provide grade lubricating material and properly cleaned.

5 low quality assembly methods: improving the quality of assembly.

6 bearing housing laps: Replace worn bearings and related components.

7 large axial force method: cleaning, alignment ring seals the gap between the requirements of 0.2 ~ 0.3mm, correct impeller balance hole diameter and the checksum static equilibrium values.

8 Bearing damage: replace the bearings.

Control raceway sound methods are: selection of low-noise bearings that waviness small bearings, judicious selection of the conditions of use. Raceway sound often affect the entire mechanical noise reduction raceway sound can reduce the overall mechanical noise.