TESTS OF DRY COMPOSITE LUBRICATED BEARINGS FOR USE IN AN AEROSPACE ENVIRONMENTAL CHAMBBER

Abstract

This report contains the results of a test program set up to determine the operational characteristics of dry composite lubricated bearings. Two different bearing types were tested: tapered roller bearings and ball bearings. Four dry composite lubricants and two low vapor pressure greases were tested. Results indicate that the dry composite lubricants were more successful when used with ball bearings than when used with tapered roller bearings. All four composite lubricants provided low system torques (40 to 60 lb-in.) under heavy loads (3000 lb/bearing) for the scheduled 100 hours. Best results were obtained using Cu (copper) and PTFE (Teflon) and WSe2 (tungsten diselenide) and a silver alloy + PTFE + WSe2. One low vapor pressure grease was successful as a lubricant at room temperature but migrated at temperatures above room temperature. The other low vapor pressure grease was successful at temperatures up to 140 F with no migration.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1965
Accession Number
AD0458414

Entities

People

  • T. L. Ridings

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Alloys
  • Assembly
  • Ball Bearings
  • Bearings
  • Composite Materials
  • Elements
  • Friction
  • Lubricants
  • Lubrication
  • Materials
  • Roller Bearings
  • Silver Alloys
  • Test And Evaluation
  • Test Facilities
  • Vapor Pressure

Fields of Study

  • Engineering
  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Space
  • Space - Hall-Effect Thruster