Effects of High-Operating Speeds on Tilting Pad Thrust Bearing Performance

[+] Author and Article Information
J. W. Capitao

Rotating Parts Systems Engineering, Mechanical Drive Turbine Products Dept., General Electric Co., Fitchburg, Mass.

R. S. Gregory

Research and Development, Kingsbury, Inc., Philadelphia, Pa.

R. P. Whitford

Product Engineering, General Electric Company, Mechanical Drive Turbine Products Dept., Fitchburg, Mass.

J. of Lubrication Tech 98(1), 73-79 (Jan 01, 1976) (7 pages) doi:10.1115/1.3452779 History: Received February 19, 1975; Online October 20, 2010


A comparison of the high-speed performance characteristics of tilting-pad, self-equalizing type thrust bearings through two independent full-scale programs is reported. This paper presents experimental data on centrally pivoted, 6-pad, 267-mm (10 1/2-in.) and 304-mm (12-in.) O.D. bearings operating at shaft speeds up to 14000 rpm and bearing loads ranging up to 2.76 MPa (400 psi). Data presented demonstrate the effects of speed and loading on bearing power loss and metal temperatures. Included is a discussion of optimum oil supply flow rate based upon considerations of bearing pad temperatures and power loss values.

Copyright © 1976 by ASME
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