Accession Number : AD0780453
Title : Progression of Surface Damage in Rolling Contact Fatigue.
Descriptive Note : Final rept. May 73-Apr 74,
Corporate Author : SKF INDUSTRIES INC KING OF PRUSSIA PA RESEARCH LAB
Personal Author(s) : Dalal,H. ; Cotellesse,G. ; Morrison,F. ; Ninos,N.
Report Date : FEB 1974
Pagination or Media Count : 67
Abstract : Deep groove 6309 ball bearings were tested under heavy load in MIL-L-23699 lubricant using an ultraclean closed loop recirculating lubrication system in which the only metallic wearing component was the test bearing. A limited amount of Ferrographic analysis on the oil samples obtained from these tests has not established a definite correlation between Ferrogram readings and bearing failure progression. The discrimination of the Shock Pulse Analyzer (MEPA) to differentiate between a failed and non-failed bearing was confirmed. The shock value increased from 500 or less on a running bearing to 1000 or more on a failed bearing. (Modified author abstract)
Descriptors : *Antifriction bearings, *Monitoring, Nondestructive testing, Fatigue(Mechanics), Friction, Roll, Monitors, Damage, Pulse analyzers, Wear, Detection, Surfaces, Failure, Spallation, Defects(Materials), Test equipment
Subject Categories : Machinery and Tools
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE