Inward Pumping in Mechanical Face Seals

[+] Author and Article Information
J. A. Findlay

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

J. of Lubrication Tech 91(3), 417-425 (Jul 01, 1969) (9 pages) doi:10.1115/1.3554952 History: Received June 25, 1968; Online August 23, 2011


The hydrodynamic characteristics which produce inward pumping in mechanical face seals are studied. Solutions to Reynolds’ equation for hydrodynamic lubrication are obtained using both the short-bearing approximation and numerical iterative methods. It is found that pumping in face seals results from combined radial eccentricity and misalignment, or one circumferential surface wave. Experimental results confirm the theory.

Copyright © 1969 by ASME
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