Regular maintenance and care

When performing regular inspections, operation checks, and replacement of peripheral parts of equipment, it is important to carefully investigate and record the disassembled bearings and their appearance to determine whether they can be used again. In order to clarify and investigate the remaining amount of lubricant, the bearings should be cleaned well after sampling.

First, check the conditions of the raceway, rolling surface, and mating surface, as well as the wear state of the cage for damage and abnormalities. After considering the degree of bearing damage, machine performance, importance, operating conditions, inspection cycle, etc., decide whether the bearing can be used again or replaced. If the bearing is found to be damaged or abnormal, find out the cause and formulate countermeasures.

If there are the following defects, the bearing cannot be used again and needs to be replaced with a new one.

01 Any of the inner and outer rings, rolling elements, and cages has cracks and fragments.

02 Any of the inner and outer rings and rolling elements has peeling.

03 The raceway, ribs, and rolling elements have significant jams.

04 The cage is severely worn or the rivets are severely loose.

05 The raceway surface and rolling element are rusted, with significant indentations and marks.

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

07 Severe discoloration due to overheating. 08 The seal ring and dust cover of the grease-sealed bearing are seriously damaged.