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Tribological Properties and Applicability of Thermo-Reversible Gel-Lubricants

[+] Author Affiliations
Nobuyoshi Ohno, Sobahan Mia, Kazuo Masuhara, Kentaro Sonoda, Yuji Yamashita, Yoshitaka Tamura, Shigeki Morita

Saga University, Saga, Japan

Yuji Shitara

Japan Energy Corporation, Toda, Japan

Paper No. IJTC2009-15049, pp. 127-129; 3 pages
doi:10.1115/IJTC2009-15049
From:
  • ASME/STLE 2009 International Joint Tribology Conference
  • ASME/STLE 2009 International Joint Tribology Conference
  • Memphis, Tennessee, USA, October 19–21, 2009
  • Conference Sponsors: Tribology Division
  • ISBN: 978-0-7918-4895-1 | eISBN: 978-0-7918-3862-4
  • Copyright © 2009 by ASME

abstract

The tribological properties of a new unique thermo-reversible Gel-Lubricant (TR Gel-Lube) were investigated. TR Gel-Lube which includes 10–40% of amide type gel agent in base fluid, is repeatedly able to change from gel-state to liquid-state at the melting point of its gel agent. High-pressure rheological tests were performed in order to characterize the behavior of base oil and TR Gel-Lube as a function of pressure and temperature. The effect of TR Gel-Lube on ball bearings fatigue life was carried out by systematic tests using thrust ball bearings. The results of L10 life tests of TR Gel-Lube showed a longer life than the conventional greases. This result was investigated from oil film formation. It was found that gel agent played a key role in the lubricating properties. Some mechanisms such as adsorbed film formation and solid like formation are proposed.

Copyright © 2009 by ASME
Topics: Tribology , Lubricants

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