Survivability of Silicon Nitride Bearing.

Abstract

An oil shutoff test was conducted on a 35 mm bearing with silicon nitride balls. The time to bearing failure was 90 sec compared to 45 sec for an M-50 steel bearing which was similarly tested. This result compares favorably with the 1.74 factor was predicted by an analytical model. Post-test inspection found the silicon nitride balls with minor surface distress compared to the extreme spalling of the M-50 balls. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1978
Accession Number
ADA070383

Entities

People

  • W. Grace

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accelerometers
  • Air Force
  • Aircrafts
  • Antifriction Bearings
  • Axial Loads
  • Ball Bearings
  • Bearings
  • Ceramic Materials
  • Computer Programs
  • Instrumentation
  • Magnetic Tape
  • Materials
  • Materials Laboratories
  • Military Research
  • Steady State
  • Test Facilities
  • Turbines

Readers

  • Combustion and Flow Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).