The rings of rolling bearings are either through hardened with a martensitic or bainitic structure or case hardened. They differ in cleanliness, structure and residual stresses. The over-rolling fatigue resistance mirrors these differences. Typical results are given for over-rolling conditions causing classical fatigue, surface-initiated failure or failure by white etching cracking.
This paper is part of a Themed Issue on Recent developments in bearing steels.
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