Evaluation of the Life Margin of Oscillating Needle Roller Bearings
- 1 January 1969
- journal article
- research article
- Published by Taylor & Francis in A S L E Transactions
- Vol. 12 (2) , 162-170
- https://doi.org/10.1080/05698196908972258
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. Test results are presented for nineteen bearings lubricated with MIL-L-7808 oil. The use of magnetic chip-detectors and spectrometric oil analysis as failure indicating devices are discussed.Keywords
This publication has 1 reference indexed in Scilit:
- Dynamic Capacity of Oscillating Rolling Element BearingsJournal of Lubrication Technology, 1968