Measurement of Separator Contact Forces in Ball Bearings Using a Derotation Prism

[+] Author and Article Information
L. J. Nypan

Department of Mechanics and Materials, School of Engineering, California State University, Northridge, Northridge, Calif. 91324

J. of Lubrication Tech 101(2), 180-187 (Apr 01, 1979) (8 pages) doi:10.1115/1.3453312 History: Received March 17, 1978; Revised June 12, 1978; Online October 20, 2010


A derotation prism was used to produce a stationary image of balls deflecting a portion of the separator. Ball to cage contact forces in a 110 mm bearing at speeds to 12,000 rpm were found to be 25 N (five lb) maximum. Inner race land contact force was found to vary up to 20 N (four lb).

Copyright © 1979 by ASME
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