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RESEARCH PAPERS

Optical Analysis of Porous Metal Bearings

[+] Author and Article Information
K. M. Yung, A. Cameron

Lubrication Laboratory, Department of Mechanical Engineering, Imperial College, London SW7, England

J. of Lubrication Tech 101(1), 99-104 (Jan 01, 1979) (6 pages) doi:10.1115/1.3453285 History: Received August 24, 1978; Online October 20, 2010

Abstract

Optical interferometry is used to study the lubrication of porous bearings. The results suggest that thermal expansion in each metal particle causes it to act as a miniature tapered land bearing. An approximate analysis gives an order of magnitude for the tilt. All the evidence is against the existence of a continuous oil film round the bearing when used normally, which hitherto is the accepted model for the operation of these bearings. Micro-recirculation of the oil was observed and the importance of running-in is discussed.

Copyright © 1979 by ASME
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