A New Fatigue Life Model for Rolling Bearings

[+] Author and Article Information
E. Ioannides, T. A. Harris

SKF Engineering & Research Centre, Nieuwegein, The Netherlands

J. Tribol 107(3), 367-377 (Jul 01, 1985) (11 pages) doi:10.1115/1.3261081 History: Received February 22, 1984; Online October 29, 2009


This paper describes a novel model for the prediction of fatigue life in rolling bearings. Central to this model is the postulation of a statistical relationship between the probability of survival, the fatigue life, and a stress-related fatigue criterion level above a fatigue limit for an elementary volume of material in the bearing. Using this concept, the stress volume to fatigue and the fatigue life of the bearing can be calculated for different loads, material and operating conditions. Comparisons between experimentally obtained rolling bearing fatigue lives and lives predicted using this theory indicate its ability to account for phenomena hitherto excluded from fatigue life predictions. Furthermore, comparisons between experimentally obtained fatigue lives for other specimens used in structural fatigue tests and fatigue lives predicted using the new model show good agreement.

Copyright © 1985 by ASME
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