9 aspects of bearings need to be replaced
For the use of bearings, regular maintenance and maintenance must be carried out. When we are concerned about the dimensional accuracy and rotation accuracy of the bearings, as well as internal internal clearance and mating surfaces, raceways, rolling surfaces, cages and seals, etc. If an abnormality occurs, it needs to be repaired or even replaced.
Bearing products are small in size, but they have very powerful functions, which can help the equipment to operate efficiently and improve the operating efficiency of the equipment. To determine 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. If the bearing is found to be damaged or abnormal, the contents of the injury section will be identified and the countermeasures will be developed. In addition, the inspection results, if there are the following defects, the bearing can no longer be used, need to replace the new bearing.
1, Any one of the inner and outer rings, the rolling elements, and the cage has cracks and fragments.
2, One of the inner and outer rings and the rolling elements are stripped.
3, the raceway surface, the ribs, the rolling elements have significant damage.
4, The wear of the cage is severe or the rivet is loose.
5, the raceway surface, rolling elements rust and scars.
6, There are significant indentations and marks on the rolling surface and rolling elements.
7, There is creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.
8, overheating and discoloration.
9, The seal ring and dust cover of the grease sealed bearing are seriously damaged.
In addition to this, the general bearing running time is 2-3 years. If the time is up, important equipment should be considered for replacement.
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