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RESEARCH PAPERS

Lubrication of High-Speed, Large Bore Tapered-Roller Bearings

[+] Author and Article Information
R. J. Parker

NASA Lewis Research Center, Cleveland, Ohio

H. R. Signer

Industrial Tectonics, Inc., Compton, Calif.

J. of Lubrication Tech 100(1), 31-38 (Jan 01, 1978) (8 pages) doi:10.1115/1.3453110 History: Received March 07, 1977; Revised June 07, 1977; Online October 20, 2010

Abstract

The performance of 120.65-mm- (4.75-in.-) bore tapered-roller bearings was investigated at shaft speeds up to 15,000 rpm (1.81 × 106 DN). Temperature distribution and bearing heat generation were determined as a function of shaft speed, radial and thrust loads, lubricant flow rate, and lubricant inlet temperature. Lubricant was supplied either by jets or by a combination of holes through the cone directly to the cone-rib contact and jets at the roller small-end side. Cone-rib lubrication significantly improved high-speed tapered-roller bearing performance, yielding lower cone-face temperatures and lower power loss and allowing lower lubricant flow rates for a given speed condition. Bearing temperatures increased with increased shaft speed and decreased with increased lubricant flow rate. Bearing power loss increased with increased shaft speed and increased lubricant flow rate.

Copyright © 1978 by ASME
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