Unitized grit seal with removable thrust bumper

Details Unitized grit seal with removable thrust bumper Unitized grit seal with removable thrust bumper

1991-02-06

1993-02-02

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 35, 277152, F16J 1532

Patent

active

051832690

ABSTRACT:
A unitized, fluid seal assembly for heavy duty applications. The seal assembly includes a primary seal unit, an annular wear sleeve, and a separately formed thrust bumper made from a stiff but resilient, high temperature resistant, lubricous plastic material. The thrust bumper has a body with opposed, tapered surfaces meeting to define a narrow band that contacts the radial end face of a radial flange on the wear sleeve or the primary seal casing. The primary seal unit includes an elastomeric seal body with primary and excluder lips, and the wear sleeve includes an additional excluder lip contacting a portion of the primary seal casing.

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patent: 5004248 (1991-04-01), Messenger
patent: 5015001 (1991-05-01), Jay

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