Experimental Load Capacity and Power Loss of Herringbone Grooved Gas Lubricated Journal Bearings

[+] Author and Article Information
R. E. Cunningham, D. P. Fleming, W. J. Anderson

Lewis Research Center, National Aeronautics and Space Administration, Cleveland, Ohio

J. of Lubrication Tech 93(3), 415-422 (Jul 01, 1971) (8 pages) doi:10.1115/1.3451610 History: Received August 24, 1970; Online October 18, 2010


Load capacity, attitude angle, and power loss were determined for 1 1/2-in-dia herringbone grooved journal bearings operating in air to speeds of 60,000 rpm. Results showed that groove-to-ridge-clearance ratios of 2.0 to 2.4 give a greater load capacity than do ratios outside this optimum range. Agreement with a small-eccentricity pressure perturbation theory was good for groove-to-ridge-clearance ratios in the optimum range. Power loss, relative to that calculated for a plain bearing of the same dimensions, did not vary widely for the range of geometric variables used. Relative power loss generally increased with speed and was generally comparable to that for a plain bearing.

Copyright © 1971 by ASME
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