Measurement of Elastohydrodynamic Oil Film Thickness and Wear in a Ball Bearing by the Strain Gage Method

[+] Author and Article Information
D. R. Meyer, C. C. Wilson

IBM, Office Products Division, Development Engineering Laboratory, Lexington, Ky.

J. of Lubrication Tech 93(2), 224-230 (Apr 01, 1971) (7 pages) doi:10.1115/1.3451545 History: Received November 16, 1970; Online October 18, 2010


A simple method of measuring elastohydrodynamic oil film thickness and wear in a ball bearing using only a preloaded bearing and a strain gage is presented. In order to illustrate this method, measured lubricant film thickness as a function of bearing speed for several different oils are given and compared to theoretical values. Wear data, based on measured wear in an actual bearing, are also presented.

Copyright © 1971 by ASME
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