EVALUATION OF THE LIFE MARGIN OF OSCILLATING NEEDLE ROLLER BEARINGS.

Abstract

The life-margin of oscillating caged needle roller bearings is determined in an explicit non-statistical manner. Life-margin is the difference between the first macroscopic evidence of spalling fatigue and the end of useful bearing life. The bearings were life tested under service conditions closely duplicating those in helicopter rotor vertical and horizontal hinge pin locations. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 16, 1968
Accession Number
AD0666588

Entities

People

  • John H. Rumbarger

Organizations

  • Franklin Institute

Tags

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Bearings
  • Helicopter Rotors
  • Helicopters
  • Reproduction (Copying)
  • Roller Bearings
  • Rotary Wing Aircraft
  • Test And Evaluation
  • Vehicles

Readers

  • Theoretical Analysis.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).