Design of Pivoted-Pad Journal Bearings

[+] Author and Article Information
R. C. Elwell

Atomic Motor Business Section, Large Generator and Motor Department, General Electric Company, Schenectady, N. Y.

J. A. Findlay

Fluids Branch, Research and Development Center, General Electric Company, Schenectady, N. Y.

J. of Lubrication Tech 91(1), 87-103 (Jan 01, 1969) (17 pages) doi:10.1115/1.3554903 History: Received March 25, 1968; Online August 23, 2011


Calculated load capacity and friction for complete pivoted-pad journal bearings are presented, for use in design computations. Dimensionless numerical results are given for the following variations in bearing geometry: 3 and 5 pads, L/D ratios of 1/2 to 1, pivot locations of 40, 50, and 60 percent, on pivot and between pivot loading, and ratios of “assembled” to “ground” clearance of 0.6, 0.8, and 1.0. The numerical results are an extension of the work of Castelli, et al., reference [1],1 and were generated in the same manner i.e., numerical solution of Reynolds’ equation by digital computer. Laminar, incompressible flow, and subambient pressures in diverging portions of the films were assumed. Illustrative numerical examples are included and significant conclusions with respect to major variables (L/D ratio, number of pads, clearances, pivot location, load direction) are drawn from the range of data produced.

Copyright © 1969 by ASME
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