Product knowledge

When do tapered roller bearings need to be replaced?

Writer: admin Time:2021-11-16 11:40 Browse:

To judge whether the tapered roller bearing can be used again, it is necessary to consider the degree of damage of the tapered roller bearing, 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 tapered roller bearing is found, the cause needs to be found out and countermeasures are made. In addition, as a result of the inspection, 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.

Since the tapered roller bearing is not a long-term use product, its damage frequency is relatively high, so after a short time, it must be replaced once to avoid unnecessary losses. But under what circumstances, the tapered roller bearing needs to be replaced? How should we judge whether tapered roller bearings are available? It is mainly determined by considering the degree of damage of tapered roller bearings, mechanical properties, importance, operating conditions, and the period until the next overhaul.
 
If it has the following defects, it can no longer be used and the tapered roller bearing must be replaced with a new one. There are cracks or gaps in any one of the inner ring, outer ring, rolling element, and cage.

1. There is a fracture on any one of the ferrule and rolling element.
 
2. There are significant jams on the rolling surface, ribs, and rolling elements.
 
3. The cage is significantly worn or the rivets are significantly loosened.
 
4. There is rust and scratches on the raceway surface and rolling elements.
 
5. There are serious indentations and marks on the raceway surface and rolling elements.
 
6. There is obvious creep on the inner diameter surface of the inner ring or the outer diameter surface of the outer ring.
 
7. Discoloration caused by heat is obvious.
 
8. For tapered roller bearings filled with grease, the seal ring or dust cover is obviously damaged. 



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