EVALUATION OF FRICTION AND WEAR CHARACTERISTICS OF MATERIALS FOR GAS-LUBRICATED BEARINGS UNDER CONDITIONS OF START-STOP, AND WHIRL INDUCED RUBBING.

Abstract

A materials evaluation study was made as applied to 'general' types of self-acting gas-lubricated bearings under start-stop cycling with equal emphasis on ability to sustain whirl-induced solid contact. The study entailed a systematic program of investigation and classification of the performance in a realistic bearing environment of likely combinations of materials, surface treatments, and coatings at four ambient conditions: air at room temperature and atmospheric pressure, air at 300F and atmospheric pressure, nitrogen at room temperature and atmospheric pressure, nitrogen at 300F and atmospheric pressure. Concurrent with the above mentioned tasks, 'bearing' instability characteristics (in contrast to journal instability) were studied experimentally and correlated with theory. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1965
Accession Number
AD0625376

Entities

People

  • D. D. Fuller
  • J. G. Hinkle

Organizations

  • Franklin Institute

Tags

DTIC Thesaurus Topics

  • Barometric Pressure
  • Bearings
  • Classification
  • Contrast
  • Environment
  • Friction
  • Instability
  • Materials
  • Nitrogen
  • Surface Finishing
  • Test And Evaluation

Readers

  • Systems Analysis and Design
  • Thermal Physics or Thermal Science.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).