Dual-lip shaft seal with one spring-urged lip

Details Dual-lip shaft seal with one spring-urged lip Dual-lip shaft seal with one spring-urged lip

1985-12-02

1986-09-23

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277153, 277166, F16J 1532

Patent

active

046131434

ABSTRACT:
A dual-lip shaft seal with two PTFE sealing members bonded to a molded elastomeric body, and a method and mold for its manufacture includes an elastomeric body bonded to the radial flange of a metal case and provides (1) a shaped lip with a garter spring held in a recess and, bonded to its other side, a frustoconical PTFE ring providing its sealing lip portion and (2) an inflexible portion bonded to a radially extending PTFE wafer.

REFERENCES:
patent: 3857156 (1974-12-01), Clark
patent: 4464322 (1984-08-01), Butler

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