SKF bearings can then use to judge removed, to bearing checks after cleaning, carefully check the roller surface, scroll, status of the mating surfaces, cages for wear, increased bearing clearance and have no impact accuracy falling damage, abnormal. Non-separation of small ball bearings, flat side on the inner ring with single hand, rotate the outer ring to confirm smooth.
Tapered roller bearings are separable and the rolling element and the Raceway in the outer ring can be respectively checked.
Larger bearings cannot rotate, check rolling element and the Raceway, cage, sidewall surface appearance, higher importance need to be careful to check the bearing.
Judge SKF bearings when you will use it again, according to bearing damage, mechanical performance, importance, on the operating conditions, check the cycle and other relevant factors to decide. But when checking if any of the following defects, bearing should not be used, new bearing needs to be replaced.
1. inner ring, outer ring, rolling elements, any cracks or gaps in the cage;
2. any break in the rings, rolling elements;
3. the Raceway surface, and has a clear edge, rolling scrapes;
4. cage wear obvious, or rivet obvious loose;
5. have rusting on Raceway surface, rolling, or injuries;
6. on Raceway surface, rolling with serious pressure marks or scratches;
7. the diameter of the inner ring or have a clear outer ring outside diameter surface creep;
8. the obvious discoloration due to overheating;
9. into the SKF bearing lubricating greases, dust cover of the seals badly broken.
Most of the bearings are damaged for various reasons – exceeded the original estimate of load, non-effective sealing, tight fit was too small as a result of bearing clearances and so on. Either of these factors there is a special type of damage and leaving a special shows signs of damage. Therefore, inspect damaged shaft, can be found in most of the cases might be the cause, generally speaking, bearing damage due to fatigue damage of one-third, other one-third due to poor lubrication, one-third Guide for other pollutants enter SKF bearings or installed improperly.
However, these type of damage associated with the industry. For example, most of the pulp and paper industry was due to poor lubrication bearing damage or pollution is not caused by fatigue.



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