JEWEL BEARING APPLICATION TEST AND ANALYSIS

Abstract

The effect of substitution of sapphire jewelled bearings for brass at the pinion pivots on timer escapement and gear train efficiency was investigated. Results indicated that jewelling had no significant effect on the performance of the timer movements. Since the data was based on only 10 runs, the operating life increase is difficult to predict. It is reasonable to assume that pivot life and pivot hole sizes could be maintained over a greater number of operating cycles, especially the heavier loaded pivots.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 09, 1962
Accession Number
AD0276037

Entities

People

  • R. G. Lake

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Assembly
  • Ball Bearings
  • Bearings
  • Contracts
  • Drag
  • Friction
  • Government Procurement
  • Governments
  • Inspection
  • Jewel Bearings
  • Materials
  • New Jersey
  • Standards
  • Test Equipment
  • Time Fuzes
  • Vibration
  • Visual Inspection

Readers

  • Logistics and Supply Chain Management.
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).