An Accurate Solution of the Gas Lubricated, Flat Sector Thrust Bearing

[+] Author and Article Information
I. Etsion, D. P. Fleming

NASA-Lewis Research Center, Cleveland, Ohio

J. of Lubrication Tech 99(1), 82-88 (Jan 01, 1977) (7 pages) doi:10.1115/1.3452993 History: Received March 19, 1976; Revised June 07, 1976; Online October 20, 2010


A flat sector shaped pad geometry for gas lubricated thrust bearings is analyzed considering both pitch and roll angles of the pad and the true film thickness distribution. Maximum load capacity is achieved when the pad is tilted so as to create a uniform minimum film thickness along the pad trailing edge. Performance characteristics for various geometries and operating conditions of gas thrust bearings are presented in the form of design curves. A comparison is made with the rectangular slider approximation. It is found that this approximation is unsafe for practical design, since it always overestimates load capacity.

Copyright © 1977 by ASME
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