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RESEARCH PAPERS: Noise Control and Acoustics

Estimation of the Surface Roughness on the Race or Balls of Ball Bearings by Vibration Analysis

[+] Author and Article Information
H. Kanai

Education Center for Information Processing, Tohoku University, Kawauchi, Sendai 980, Japan

M. Abe, K. Kido

Research Center for Applied Information Sciences, Tohoku University, Katahira 2-1-1, Sendai 980, Japan

J. Vib., Acoust., Stress, and Reliab 109(1), 60-68 (Jan 01, 1987) (9 pages) doi:10.1115/1.3269396 History: Received August 01, 1986; Online November 23, 2009

Abstract

This paper describes a vibration-based diagnostic method by estimating the surface roughness on the rotating ring or balls in ball bearings. The surface roughness has been measured by a stylus that directly traverses the surface of the ring or balls obtained by taking apart the ball bearing. We developed a new method to estimate accurately the surface roughness by analyzing the short-length vibration signal that is excited when balls encounter flaws on the rotating ring or when races encounter flaws on the balls in a ball bearing. Our experimental results confirm that the roughness estimated by the proposed method agrees with that measured directly by using a stylus even in the case of crack μm wide. We applied this new method to the diagnosis of surface roughness in small-sized ball bearings and inferior samples were detected with a 95.3 percent accuracy rate.

Copyright © 1987 by ASME
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