Some Observations on Scuffing in Tapered Roller Bearings

[+] Author and Article Information
Harry Zantopulos

The Timken Company, Canton, OH 44706-0930

J. Tribol 120(3), 427-435 (Jul 01, 1998) (9 pages) doi:10.1115/1.2834566 History: Received June 10, 1996; Revised June 05, 1997; Online January 30, 2008


Tests were run on tapered roller bearings under severe operating conditions to promote the incidence of scuffing. This resulted in varying degrees of scuffing damage on the cone (inner race) ribs and/or spherical roller ends of some of the bearings. These were then examined using both the optical microscope and the scanning electron microscope (SEM). In addition, metallographic examinations were conducted on some of the damaged areas. On the basis of these observations, a qualitative model for the onset of scuffing is outlined. The quantitative data obtained from these tests was then analyzed in terms of Blok’s critical temperature criterion and also the scuffing criterion of the form WVx = constant.

Copyright © 1998 by The American Society of Mechanical Engineers
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