The Role of Elastohydrodynamic Lubrication in Rolling-Contact Fatigue

[+] Author and Article Information
E. V. Zaretsky, W. J. Anderson

NASA-Lewis Research Center, Cleveland, Ohio

L. B. Sibley

Battelle Memorial Institute, Columbus, Ohio

J. Basic Eng 85(3), 439-447 (Sep 01, 1963) (9 pages) doi:10.1115/1.3656641 History: Received July 06, 1962; Online November 03, 2011


The five-ball fatigue tester was used to determine the rolling-contact fatigue life of 1/2-inch-diameter M-1 steel balls with four lubricants at 300 deg F. Film thickness measurements were made with the rolling-contact disk machine under simulated five-ball test conditions. Under certain conditions, elastohydrodynamic lubrication was found to exist at initial maximum Hertz stress levels up to 800,000 psi. There appears to be a correlation among the following variables: Plastically deformed profile radius of the ball specimen at ambient temperature; lubricant type; and rolling-contact fatigue. No correlation was found between contact temperature obtained with different lubricants and fatigue life.

Copyright © 1963 by ASME
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