Optical Analysis of Ball Bearing Starvation

[+] Author and Article Information
L. D. Wedeven, A. Cameron

Lubrication Laboratory, Department of Mechanical Engineering, Imperial College, London

D. Evans

Center for Computation and Automation, Imperial College, London

J. of Lubrication Tech 93(3), 349-361 (Jul 01, 1971) (13 pages) doi:10.1115/1.3451591 History: Received July 15, 1970; Online October 18, 2010


Elastohydrodynamic oil film measurements for rolling point contact under starvation conditions are obtained using optical interferometry. The experimental measurements present a reasonably clear picture of the starvation phenomenon and are shown to agree with theoretical predictions. Starvation inhibits the generation of pressure and, therefore, reduces film thickness. It also causes the overall pressure, stress, and elastic deformation to become more Hertzian. Additional experiments using interferometry illustrate: the cavitation pattern, lubricant entrapment, grease lubrication, ball spin, and edge effects in line contact.

Copyright © 1971 by ASME
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