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RESEARCH PAPERS

Study of Direct Measuring of Lubricant Condition in Rolling Element Bearings With Microcomputer Technique

[+] Author and Article Information
Dongchu Zhao

Shanghai Jiaotong University, Shanghai, Peoples’ Republic of China

J. Tribol 112(1), 92-97 (Jan 01, 1990) (6 pages) doi:10.1115/1.2920236 History: Received February 22, 1989; Revised September 19, 1989; Online June 05, 2008

Abstract

A method for measuring the lubricant condition with strain gage in rolling element bearings and the instrument used are introduced. In order to illustrate the method and the instrument, the theory of measuring lubricant films in rolling element bearings using strain technique, test apparatus, microcomputer hardware as well as software, flow charts for the main program and subprograms, are first described in detail. In addition, the lubricant film thickness is measured for several different lubricants and results are compared with theoretical ones. It is demonstrated that using the method and the instrument introduced in this paper, one can measure the lubricant condition inside bearings very accurately.

Copyright © 1990 by The American Society of Mechanical Engineers
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