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TECHNICAL BRIEFS

Inspection of Roller Bearing Surfaces with Laser Doppler Vibrometry

[+] Author and Article Information
J. D. Georgeson, D. K. Lieu

Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Eng. Ind 114(1), 123-125 (Feb 01, 1992) (3 pages) doi:10.1115/1.2899750 History: Received April 01, 1990; Revised November 01, 1990; Online April 08, 2008

Abstract

Laser Doppler Vibrometry is presented as an effective method of measuring surface profiles of rolling contact bearing balls. An experimental setup and signal processing algorithm are used to obtain digitized surface profiles and statistical measurements of ball surfaces. Tests are made on two different grades of high precision balls and the results are compared. Measurements are presented that match lobed ball frequency results with a resolution of 0.025 microns. The method is well suited for a manufacturing environment because of its durability, simplicity, and high speed.

Copyright © 1992 by The American Society of Mechanical Engineers
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