Parametric Study of the Lubrication of Thrust Loaded 120-MM Bore Ball Bearings to 3 Million DN

[+] Author and Article Information
H. Signer

Industrial Tectonics, Inc., Compton, Calif.

E. N. Bamberger

General Electric Co., Cincinnati, Ohio

E. V. Zaretsky

NASA Lewis Research Center, Cleveland, Ohio

J. of Lubrication Tech 96(3), 515-524 (Jul 01, 1974) (10 pages) doi:10.1115/1.3452031 History: Received July 10, 1973; Online October 18, 2010


A parametric study was performed with 120-mm bore angular-contact ball bearings under varying thrust loads, bearing and lubricant temperatures, and cooling and lubricant flow rates. Contact angles were nominally 20 and 24 deg with bearing speeds to 3 million DN. Endurance tests were run at 3 million DN and a temperature of 492 K (425 deg F) with 10 bearings having a nominal 24-deg contact angle at a thrust load of 22241 N (5000 lb). Bearing operating temperature, differences in temperatures between the inner and outer races, and bearing power consumption can be tuned to any desirable operating requirement by varying 4 parameters. These parameters are outer-race cooling, inner-race cooling, lubricant flow to the inner race, and oil inlet temperature. Preliminary endurance tests at 3 million DN and 492 K (425 deg F) indicate that long-term bearing operation can be achieved with a high degree of reliability.

Copyright © 1974 by ASME
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