To determine whether the bearing can be used again, it should be decided after considering the degree of bearing damage, machine performance, importance, operating conditions, inspection cycle, etc. Check the results, if the bearing is found to be damaged or abnormal, the contents of the injury section identify the cause and formulate countermeasures. In addition, the inspection results, if there are the following defects, the bearing can no longer be used, and a new bearing needs to be replaced.

a. Any one of the inner and outer rings, rolling elements, and cage has cracks and debris.

b. Any one of the inner and outer rings and rolling elements is peeled off.

c. The raceway surface, ribs, and rolling elements are significantly stuck.

d. The cage is badly worn or the rivets are loose.

e. The raceway surface and rolling elements are rusty and scratched.

f. The rolling surface and rolling body have significant indentation and scratches.

g. There is creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.

h. Discoloration due to overheating.

i. The seal ring and the dust cover of the grease seal bearing are damaged seriously.

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