Effect of a High Traction Fluid on Skidding in a High Speed Roller Bearing

[+] Author and Article Information
W. M. Kacmarsky

Bearing Development, New Departure-Hyatt Bearings Division, General Motors Corp., Sandusky, Ohio

L. O. Hewko

Transmissions, New Departure-Hyatt Bearings Division, General Motors Corp., Sandusky, Ohio

J. of Lubrication Tech 93(1), 11-16 (Jan 01, 1971) (6 pages) doi:10.1115/1.3451498 History: Received August 03, 1970; Online October 18, 2010


Laboratory tests run under skid-prone conditions have shown that cage skid in a lightly loaded roller bearing, operating at speeds up to 3 million DN, can be reduced by using a high traction fluid as the bearing lubricant. With a Mil-L-23699 oil, maximum cage slip approached 65 percent. When the military specification oil was replaced by a fluid blended to develop a high coefficient of traction, the maximum cage slip, in the same bearing, was reduced to approximately 3 percent. The high traction oil did not comply with the Mil Specification; however, the dramatic reduction in skidding demonstrated the desirability of increasing the traction coefficients for fluids used to lubricate aircraft jet engine mainshaft bearings.

Copyright © 1971 by ASME
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