Neale Consulting Engineers - Rolling Bearing Failure - Premature Fatigue

ROLLING BEARING FAILURE

Rolling bearing failure index

3.2 Incorrect fitting methods

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	Figure 3.2a Fitting impact damage on angular contact
	Figure 3.2b
Main Characteristics	Pressing the inner race on to a shaft by applying force to the outer race will cause indentations at the rolling element contacts by plastic deformation (figure 3.2a). Alternatively, misalignment when offering up the races of a separable cylindrical roller bearing can cause scoring at the point of contact of the roller ends and the race (figure 3.2b). Both these mechanisms result in damage to the bearing surface that acts as stress raisers and reduces the fatigue life.
Cause
Note
Possible Confusion with Other Types of Damage
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