Accession Number : AD0282625

Title :   ANALYTICAL AND EXPERIMENTAL STUDY OF ADAPTING BEARINGS FOR USE IN AN ULTRA-HIGH VACUUM ENVIRONMENT. PHASE IV. SCREENING OF DRY LUBRICANTS FOR USE IN HIGHLY LOADED LOW-SPEED BEARINGS AND GEARS

Corporate Author : WESTINGHOUSE ELECTRIC CORP EAST PITTSBURGH PA

Personal Author(s) : BOWEN,P.H.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : The outgassing characteristics of sixteen composites and one experimental plastic material were studied in an ultra high vacuum to determine the amount and composition of gases evolved at various temperatures. Decomposition of the composite components and the experimental plastic was observed at temperatures of 760 degrees and 960 degrees F. The composites containing silver exhibited satisfactory outgassing rates at the lower temperature. Also studied were the wear and friction characteristics of ninety-six self-lubricating composites in air at a sliding velocity of 47 fpm and under loads from 530 to 1400 psi. Composites containing polytetrafluoroethylene-tungsten diselenide-silver or copper and those containing a new radiation resistant thermoplastic-tungsten diselenide-bronze exhibited especially promising wear and friction characteristics. (Author, modified-PL).

Descriptors :   *SPACE ENVIRONMENTS, *VACUUM APPARATUS, BALL BEARINGS, BEARINGS, BRONZE, COMPOSITE MATERIALS, CONTROLLED ATMOSPHERES, COPPER, FRICTION, GEARS, HIGH TEMPERATURE, LUBRICANTS, MIXTURES, NITROGEN, PLASTICS, POWDERS, SELENIDES, SILVER, TUNGSTEN

Distribution Statement : APPROVED FOR PUBLIC RELEASE