How to judge whether the bearing can be used again from appearance?

• Shanghai Zhio Technology Co.,Ltd 
• 2023-08-29

To judge whether the bearing can be used again, it is necessary to consider the degree of bearing damage, machine performance, importance, operating conditions, inspection cycle, etc. before making a decision.
As a result of the inspection, if any damage or abnormality of the bearing is found, find out the cause and formulate countermeasures in the section of injury. In addition, as a result of the inspection, if there are the following defects, the bearing can no longer be used, and a new bearing needs to be replaced.
a. There are cracks and fragments in either the inner and outer rings, rolling elements, or cages.
b. Either the inner or outer rings and rolling elements have peeled off.
c. The raceway surface, ribs, and rolling elements are significantly jammed.
d. The cage is severely worn or the rivets are severely loosened.
e. The raceway surface and rolling elements are rusty and scratched.
f. There are significant indentations and marks on the rolling surface and rolling elements.
g. Creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.
h. Discoloration is severe due to overheating.