Radial Forces in a Misaligned Radial Face Seal

[+] Author and Article Information
I. Etsion

Department of Mechanical Engineering, Technion, Haifa, Israel

J. of Lubrication Tech 101(1), 81-85 (Jan 01, 1979) (5 pages) doi:10.1115/1.3453281 History: Received June 10, 1977; Online October 20, 2010


Radial forces on the primary seal ring of a flat misaligned seal are analyzed, taking into account the radial variation in seal clearance. An analytical solution for both hydrostatic and hydrodynamic effects is presented that covers the whole range from zero to full angular misalignment. The net radial force on the primary seal ring is always directed so as to produce a radial eccentricity which generates inward pumping. Although the radial force is usually very small, in some cases it may be one of the reasons for excessive leakage through both the primary and secondary seals of a radial face seal.

Copyright © 1979 by ASME
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