Comparative evaluation of several hydraulic fluids in operational equipment, a full-scale pump test stand, and the four-ball wear tester.

E. E. Klaus, J. M. Perez

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A four-ball wear test was designed and tested with a series of petroleum based hydraulic fluids. This test procedure comprises a sequence of three 30 minute test segments designed to evaluate 'wear in', steady state wear and the effect of antiwear films produced in the first two parts of the test. Excellent repeatability of this sequential testing was established. The wear properties of formulated fluids were shown to be a function of system temperature and bearing load. A series of formulated mineral oil base lubricants that were evaluated extensively in heavy-duty industrial hydraulic equipment were also evaluated in a laboratory pump test system and the sequential four-ball wear test. A correlation developed for the heavy-duty industrial hydraulic systems with the laboratory pump test system was extended to the four-ball wear tester sequential runs under specific load and temperatures. (A)

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherSoc. Automot. Engrs. Inc
ISBN (Print)0898833299, 9780898833294
StatePublished - 1983

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Klaus, E. E., & Perez, J. M. (1983). Comparative evaluation of several hydraulic fluids in operational equipment, a full-scale pump test stand, and the four-ball wear tester. In Unknown Host Publication Title Soc. Automot. Engrs. Inc.