0

Full Content is available to subscribers

Subscribe/Learn More  >

Development and Evaluation of a High Performance Universal Grease

[+] Author Affiliations
P. B. Aswath, S. Munot, R. L. Elsenbaumer

University of Texas at Arlington, Arlington, TX

K. Patel

Platinum Research Organization, Dallas, TX

Paper No. WTC2005-64079, pp. 559-560; 2 pages
doi:10.1115/WTC2005-64079
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

Lithium based grease constitutes a large fraction of the grease consumed in the aviation and automobile industry. The durability and performance of the grease depends upon the additives added. The additive package used here includes PTFE (Poly Tetra-flouroethylene) for low coefficient of friction, ZDDP (Zinc Dialkyl Dithiophosphate) for anti wear properties, and Molybdenum sulfide for high load applications. We have developed a catalyst that helps PTFE to adhere to the metal surface at a low temperature. Block-on-cylinder tests and 4-ball weld tests were carried out to evaluate the effect of these variables. After carrying out matrix of tests at a low load and at high load, it is seen that the formulation with the combination of ZDDP, PTFE and the catalyst work in synergy. At low loads PTFE and catalyst provide wear protection and at higher loads thermal decomposition of ZDDP occurs which forms sulfates and phosphates, which adhere to metal surface to provide protection. Under extreme pressure conditions a synergistic interaction between PTFE, ZDDP, MoS2 and catalyst is responsible for enhanced weld loads.

Copyright © 2005 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In