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RESEARCH PAPERS

Behavior of a Pivoted-Pad Thrust Bearing During Start-Up

[+] Author and Article Information
R. E. Gustafson

USN Marine Engineering Laboratory, Annapolis, Md.

J. of Lubrication Tech 89(2), 134-142 (Apr 01, 1967) (9 pages) doi:10.1115/1.3616931 History: Received March 26, 1965; Online July 12, 2011

Abstract

Starting tests were made on a pivoted-pad thrust bearing of 23-in. major diameter, subjected to a loading of 723 psi for various periods of time prior to start. Records of oil-film thicknesses and pressures, and of torque and individual thrust-pad loadings, showed details of the action of the bearing during torque buildup, at breakaway, and during acceleration. It was found that breakaway torques were lower than expected and were not influenced by the period of static loading prior to starting so long as the period exceeded 1 hr. The adverse effects of interruptions of the surface of the thrust-collar facing plates were shown.

Copyright © 1967 by ASME
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