To judge whether tapered roller bearings can be used again, we should consider the degree of damage of tapered roller bearings, machine performance, importance, operating conditions, inspection cycle and so on.Inspection results, if it is found that tapered roller bearings have damage and abnormal conditions, it is necessary to find out the reasons and formulate countermeasures.In addition, the inspection results show that if there are the following defects, the tapered roller bearing can no longer be used and a new tapered roller bearing needs to be replaced.

Because tapered roller bearings are not used for a long time, the frequency of damage is relatively high. So after a short time, it is necessary to replace them once, so as to avoid unnecessary losses. But in what case, tapered roller bearings need to be replaced, and how should we judge whether tapered roller bearings are available?It is mainly decided by considering the degree of damage, mechanical properties, importance, operating conditions, and the period of the next maintenance of tapered roller bearings.If there are the following defects can no longer be used, must be replaced with a new tapered roller bearing.Cracks or notches are found on any of the inner ring, outer ring, rolling body or cage.

1. There is a fracture on either of the ring or the rolling body.

2. There are significant sticking wounds on the rolling track surface, guard edge and rolling body.

3. Significant wear of cage or significant relaxation of rivets.

4. Raceway surface and rolling body have rust and injury.

5, raceway surface, rolling body there are serious indentation and hit marks.

6. There is obvious creep on inner diameter surface of inner ring or outer diameter surface of outer ring.

7. The discoloration caused by heat is obvious.

8. The sealing ring or dust cover of the tapered roller bearing sealed with grease is damaged obviously.

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