SOLID FILM LUBRICANT WEAR LIFE UNDER VARIOUS TEST PARAMETERS.
Abstract
Representative solid film lubricants were evaluated under various combinations of load and speed. Coatings were applied to both rotating and stationary test specimens which had been grit blasted and zinc phosphatized prior to application. Coatings were cured in accordance with the specification requirements. The following general conclusions may be made from the study: (1) Wear life of the coating is dependent on load, speed, bearing configuration and the type of solid lubricant, (2) wear life usually decreases with increased load, however in some cases in the lower load range it remained constant, (3) the effect of speed depends on how wear life is expressed, if it is expressed in minutes it was found that coating life decreases with increasing speed except for a few cases where it remained constant. When wear life is expressed in linear feet it may increase, decrease or remain constant with increasing load, (4) the order in which a solid lubricant coating is ranked depends upon the machine used in evaluating it, (5) no single bench testing machine can be used to predict the service life of solid film lubricant coatings. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0663814
Entities
People
- George Murphy Jr.