To determine whether the tapered roller bearings can be used again, we have to consider the degree of tapered roller bearing damage, machine performance, importance, operating conditions, inspection cycle and so on before deciding. As a result of the inspection, if damage and abnormalities are found in the tapered roller bearings, it is necessary to identify the causes and formulate countermeasures. In addition, the inspection results, if there are the following kinds of defects, tapered roller bearings can no longer be used, need to replace the new tapered roller bearings. Because the tapered roller bearings are not long-lasting products, so its damage frequency is relatively high, so after a short period of time, we need to replace a, so as not to cause unnecessary losses, but what circumstances, tapered roller bearings need to replace it, and how we should go to determine whether the tapered roller bearings available? The main consideration is the degree of damage to the tapered roller bearings, mechanical properties, importance, operating conditions, to the next maintenance period and decide. If the following defects can no longer be used, must be replaced with new tapered roller bearings. Inner ring, outer ring, rolling body, cage on any one of the cracks or chips. 1. the ring, rolling body on any one of the fracture. 2. Significant seizure on the rolling path surface, retaining edge, rolling body. 3. Significant cage wear or significant rivet slack. 4. There is rust and injury on the raceway surface and rolling body. 5. Severe indentation and scoring on the raceway surface and rolling body. 6. There is significant creep on the inner diameter surface of the inner ring or outer diameter surface of the outer ring. 7. Discoloration caused by heat is obvious. 8. sealed into the grease tapered roller bearings, seals or dust cover of the breakage is obvious.  

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