Performance of 75-Millimeter Bore Arched Outer-Race Ball Bearings

[+] Author and Article Information
H. H. Coe, B. J. Hamrock

Lewis Research Center, Cleveland, Ohio

J. of Lubrication Tech 99(3), 346-352 (Jul 01, 1977) (7 pages) doi:10.1115/1.3453219 History: Received April 01, 1976; Revised June 08, 1976; Online October 20, 2010


An investigation was performed to determine the operating characteristics of 75-mm bore, arched outer-race bearings, and to compare the data with those for a similar, but conventional, deep groove ball bearing. Further, results of an analytical study, made using a computer program developed previously, were compared with the experimental data. Bearings were tested up to 28,000 rpm shaft speed with a load of 2,200 N (500 lb). The amount of arching was 0.13, 0.25, and 0.51 mm (0.005, 0.010, and 0.020 in.). All bearings operated satisfactorily. The outer-race temperatures and the torques, however, were consistently higher for the arched bearings than for the conventional bearings.

Copyright © 1977 by ASME
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