Pressurized bearing seal assembly

Details Pressurized bearing seal assembly Pressurized bearing seal assembly

1986-09-05

1988-04-26

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 24, 277205, 277216, F16J 1532, F16J 1546

Patent

active

047399970

ABSTRACT:
A pressurized bearing seal which uses pressurized air (1) to expand a sealing member which surrounds a shaft supported by the bearing to create a seal between the shaft and bearing, and (2) for an air purge from the bearing along the shaft to prevent intake of foreign particles into the bearing along the shaft. A ring assembly, which is secured to the bearing, surrounds the expandable member and has a conduit formed therein for purging or bleeding pressurized air along the shaft to the atmosphere.

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