When judging whether the disassembled bearing can be reused, check the bearing after cleaning, carefully check the wear of the raceway surface, rolling surface, matching surface, cage, whether the bearing clearance increases, and whether the dimensional accuracy decreases. Damage, abnormality.

Usually, vibrations in bearings, rolling bearings themselves do not generate noise, and the usual "bearing noise" is actually the sound effect of direct or indirect vibrations of the bearing and the surrounding structure. This is why many times noise problems can be regarded as vibration problems involving the entire bearing application.