Patent Number: 6,305,693

Title: Precision load adjustable rotary shaft seal

Abstract: A rotary seal assembly is comprised of a collar adapted to be fixedly mounted on a shaft, the collar including a plurality of through going apertures parallel to the axis of the shaft. Drive fingers are slideably mounted within the bores of the collar, an inner end of the fingers being fixed to a pusher ring shiftable toward and away from the collar. The outer end of the fingers extend through complemental apertures formed in a containment ring into a rotary seal component. Springs are biased between the containment ring and drive collar to urge the fingers axially into aligned bores formed in a rotary seal member. Characterizing features of the invention reside in the rotary seal member being endwisely removable from the fingers and by the ability to factory preset the precise force with which the rotary seal component will be urged against the static seal face by adjusting the position of the collar relative to the static seal face and inserting tabs between the collar and containment ring of a size to maintain the adjusted position of the parts.

Inventors: Wehrle; Paul Francis (Wiscasset, ME)

Assignee: Woodex Bearing Company, Inc.

International Classification: F16J 15/34 (20060101); F16J 015/34 ()

Expiration Date: 10/23/2018