FURTHER LABORATORY STUDIES OF FRICTION IN TFE SLIDE SURFACE OF A BRIDGE BEARING

This report describes a laboratory study relating to four aspects of friction in a lubricated tetrafluorethylene (TFE) stainless steel sliding surface of a bridge bearing: 1) repeatability of test data from friction tests, 2) means of reducing the initial coefficient of friction, 3) effects of contamination of the lubricant, and 4) effects of eccentricity of load. It was found that appreciable scatter occurs in the data from friction tests and that neither precycling of the TFE-stainless steel interface at a low contact pressure nor lubrication of the stainless steel surface, in addition to the TFE surface, reduces the initial coefficient of friction. Further, it is shown that the coefficient of friction is increased significantly by the presence of a relatively small amount of Portland cement in the lubricant and to a lesser degree by eccentricity of loading. (Author/TRRL)

  • Corporate Authors:

    Ontario Ministry of Transportation & Communic, Can

    1201 Wilson Avenue
    Downsview, Ontario M3M 1J8,   Canada 
  • Authors:
    • Campbell, T I
    • Fatemi, M J
  • Publication Date: 1989-10

Language

  • English

Media Info

  • Features: References;
  • Pagination: 28 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00609275
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: MAT-89-06
  • Files: ITRD, TRIS
  • Created Date: Jun 30 1991 12:00AM