Accession Number : AD0709462

Title :   SCANNING ELECTRON MICROSCOPY OF 6309 SIZE BEARINGS.

Descriptive Note : Interim rept.,

Corporate Author : SKF INDUSTRIES INC KING OF PRUSSIA PA RESEARCH LAB

Personal Author(s) : Leonard,Laurence ; Cotellesse,Gerald

Report Date : 31 JUL 1970

Pagination or Media Count : 53

Abstract : The present research program is primarily concerned with a thorough study of bearing surfaces, both before and after running, with scanning electron microscopy (SEM) techniques. The SEM is a relatively new research tool whose application should lead to a much better characterization of surface initiated failure processes. Furthermore, since large surface areas can be conveniently studied, a more valid representation of bearing surfaces and their modifications with running should be obtained. This report covers the first phases of this research program. After a brief introduction on the SEM, a series of representative micrographs will be presented and briefly described. Then a discussion of the results to date will be presented. Finally, there will be an outline of further work on this current research program. (Author)

Descriptors :   (*BALL BEARINGS, *ELECTRON MICROSCOPY), OPTICAL ANALYSIS, SURFACE ROUGHNESS, ETCHING, NUCLEATION, DEFECTS(MATERIALS), CRACKS, CRACK PROPAGATION, PHOTOGRAPHS, NONDESTRUCTIVE TESTING

Subject Categories : Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE