Accession Number : AD0430287


Title :   INFLUENCE OF LUBRICATION ON ENDURANCE OF ROLLING CONTACTS.


Descriptive Note : Progress rept. no. 8, 22 June-22 Sep 63.


Corporate Author : SKF INDUSTRIES INC PHILADELPHIA PA


Report Date : 22 Sep 1963


Pagination or Media Count : 73


Abstract : Rolling 4-ball endurance, conductivity and wear tests were continued. Radiotracer wear data were obtained at low speed (2500 rpm) endurance test conditions. Conductivity tests were also performed at this and adjacent speeds. For both test series, a blended Primol-decalin lubricant with 15.4 cs. viscosity at 34 C. was used. Asperity contacts are not maintained through this oil at 2500 rpm once the balls have been thoroughly run-in. For this reason, a thinner oil is being blended and will be used. In low speed tests, an excessive number of orbiting-ball failures occurred. All future tests will be conducted using acid open-hearth steel as orbiting ball material. (Author)


Descriptors :   *BALL BEARINGS , LUBRICATION , LUBRICATION , TRACER STUDIES , ELECTRICAL CONDUCTIVITY , FRICTION , FATIGUE(MECHANICS) , FAILURE(MECHANICS) , STEEL , LUBRICANTS , VISCOSITY , TEST METHODS , VELOCITY , HYDRODYNAMICS , MATHEMATICAL ANALYSIS , TABLES(DATA) , WEAR RESISTANCE


Distribution Statement : APPROVED FOR PUBLIC RELEASE