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RESEARCH PAPERS

Propagation of Contact Fatigue From Surface and Subsurface Origins

[+] Author and Article Information
W. E. Littmann

Metallurgy Research, Timken Roller Bearing Company, Canton, Ohio

R. L. Widner

Timken Roller Bearing Company, Canton, Ohio

J. Basic Eng 88(3), 624-635 (Sep 01, 1966) (12 pages) doi:10.1115/1.3645922 History: Received August 13, 1965; Online November 03, 2011

Abstract

Fatigue life of tapered roller bearings and other elements subject to cyclic contact stress reflects the fatigue strength of the selected material under given environmental conditions. The various modes of contact-fatigue failure have been classified according to their appearance and the factors which promote their initiation and propagation. Illustrations of the various failure modes include rig test specimens and bearings representing normal catalog-rated life under laboratory and application environments. Evidence is presented for the propagation of contact fatigue from surface and subsurface origins.

Copyright © 1966 by ASME
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