On the Scuffing Failure of Hydrodynamic Bearings in the Presence of an Abrasive Contaminant

[+] Author and Article Information
M. M. Khonsari

Department of Mechanical Engineering, Southern Illinoise University at Carbondale, Carbondale, IL 62901-6603

M. D. Pascovici, B. V. Kucinschi

Department of Mechanical Engineering, Polytechnic University of Bucharest, Bucharest, 79590, Romania

J. Tribol 121(1), 90-96 (Jan 01, 1999) (7 pages) doi:10.1115/1.2833816 History: Received August 28, 1997; Revised March 25, 1998; Online January 24, 2008


The presence of rigid particulate contamination in hydrodynamic bearings is known to lead to considerable damage resulting in failure. This paper presents a model for evaluating the flash temperature between a fixed, rigid particle embedded into the bearing over-layer while in contact with the slider. Scuffing is assumed to occur if the flash temperature exceeds a certain critical value. The model provides a convenient procedure for estimating an appropriate filter size. Examples are provided to illustrate the utility of the model.

Copyright © 1999 by The American Society of Mechanical Engineers
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