Accession Number : AD0292666

Title :   A STUDY OF THE INFLUENCE OF LUBRICANTS ON HIGHSPEED ROLLING-CONTACT PERFORMANCE

Descriptive Note : Rept. for 1 Mar-30 Nov 61,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO

Personal Author(s) : SIBLEY,LEWIS B. ; BELL,J. CLARENCE

Report Date : SEP 1962

Pagination or Media Count : 1

Abstract : The thickness of the lubricant film and the shape of the elastically deformed surfaces at rolling contacts, as measured by an X-ray method, indicate that some non-Newtonian flow properties of lubricants may have important effects in rolling-contact lubrication. A high-pressure lubricant rheology device is being developed to measure these properties under simulated rolling-contact conditions. Several difficult equipment and instrumentation problems were solved to obtain reliable accurate shear-stress and shear-rate data on the rheology machine. However, a brief consideration of some remaining thermal problems in the rheology machine has led to the temporary abandonment of this experimental approach to obtaining realistic high-pressure rheology data on lubricants in favor of a proposed new approach to the analysis of the diskmachine data. The disk machine has been instrumented to obtain the traction or friction at the rolling contact over a range of known amounts of slip superimposed on the rolling. Initial traction data, together with an analysis for interpreting these data in terms of pressure-viscosity coefficients, indicate considerable promise for this rheological technique. (Author)

Descriptors :   *BEARINGS, *FILMS, *LUBRICANTS, *LUBRICATION, DISKS, FRICTION, HEATING, HIGH PRESSURE, INSTRUMENTATION, MEASUREMENT, OILS, PHOTOTUBES, ROLLER BEARINGS, SHEAR STRESSES, TEST EQUIPMENT, THICKNESS, VELOCITY, VISCOSITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE