SEDL / STP / STP1339-EB / STP38282S

Fundamental Hydraulic Wear Processes

Liang, H
Assistant Professor, University of Alaska, Fairbanks, AK

Mizuno, K
Engineer, Basic Technology R&D Center, Kayaba Industry Co., Ltd., Sagamihara, Kanagawa Pref.,

Totten, GE
Senior Research Scientist and Project Scientist, UCON® Fluids and Lubricants, Union Carbide Corp., Tarrytown, NY

Bishop, RJ


Lemberger, S
Engineer, John Crane Inc., Morton Grove, IL

Pages: 21    Published: Jan 2001

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Abstract

To effectively perform root cause analysis of hydraulic wear problems and system failures, it is vital that the fundamental wear processes be correctly recognized and understood. In this paper, fundamental potential pump wear problems will be illustrated pictorially and the mechanisms of these processes will be discussed. Some of the wear processes to be discussed include: abrasion, adhesion, cavitation, rolling contact fatigue, corrosion, and lubrication failure. It is expected that this discussion will provide a basic background to facilitate understanding of the more complex wear processes to be discussed during this conference.