Ball Bearing Response to Cage Unbalance

[+] Author and Article Information
P. K. Gupta

PKG Inc., 117 Southbury Road, Clifton Park, N.Y. 12065

J. F. Dill

Air Force Aero Propulsion Laboratory, Wright-Patterson Air Force Base, Ohio

J. W. Artuso, N. H. Forster

Air Force Aero Propulsion Laboratory (AFWAL/POSL), Wright-Patterson Air Force Base, Ohio 45433

J. Tribol 108(3), 462-466 (Jul 01, 1986) (5 pages) doi:10.1115/1.3261240 History: Received February 28, 1985; Online October 29, 2009


Motion of the cage in a high-speed angular contact ball bearing is experimentally investigated as a function of prescribed unbalance, up to operating speeds corresponding to three million DN. The predictions of cage motion made by the recently developed computer model, ADORE, are validated in the light of the experimental data. It is shown the cage whirl velocity is essentially equal to its angular velocity at all levels of unbalance and over a wide range of operating conditions. For the inner race guided turbine engine bearing, the cage/race interaction takes place directly opposite to the location of the unbalance and the severity of the interaction increases with the level of unbalance and the operating speed. ADORE predictions, over the entire range of unbalance and bearing operating conditions, are in very good agreement with the experimental observations.

Copyright © 1986 by ASME
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