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KRL Thrust Bearing Rig: Effects of Test Conditions on Bearing Performance

[+] Author Affiliations
Carl F. Kernizan, Carlos L. Cerda de Groote, Melinda E. Bartlett

The Lubrizol Corporation, Wickliffe, OH

Paper No. WTC2005-64266, pp. 587-588; 2 pages
doi:10.1115/WTC2005-64266
From:
  • World Tribology Congress III
  • World Tribology Congress III, Volume 1
  • Washington, D.C., USA, September 12–16, 2005
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4201-0 | eISBN: 0-7918-3767-X
  • Copyright © 2005 by ASME

abstract

This work explains and tests the relationship between tribological test conditions, grease rheology and the performance of grease lubricated tapered bearings. These conditions were simulated in a KRL thrust bearing rig, through six test sequences, which targeted the lubrication regimes depicted by the Stribeck-Hersey curve. Sequence completion, severity, grease type and loading determined bearing performance. The starved flow model together with grease rheology explained performance and matched a lubrication regime to each sequence. Grease type and loading are application dependent and are critical to meet performance and cost requirements.

Copyright © 2005 by ASME

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