Hydraulic shaft seal

Details Hydraulic shaft seal Hydraulic shaft seal

1992-04-13

1993-12-14

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277152, 277227, 277DIG6, F16J 1532

Patent

active

052695395

ABSTRACT:
A hydraulic shaft seal (10) has a first elastomeric part (40) and a second elastomeric part (42). The first elastomeric part (40) has a surface (54) for sealingly engaging the peripheral surface (56) of a shaft (14), and is formed of a vulcanizable elastomeric composition which includes a first fluorinated rubber. The second elastomeric part (42) supports the first elastomeric part (40) in a sealing position, and is formed of a vulcanizable elastomeric composition which includes a second fluorinated rubber but is essentially free of the first fluorinated rubber. The first elastomeric part (40) is co-vulcanized with the second elastomeric part (42) and is bonded to the second elastomeric part (42) by cross-linking between the two elastomeric parts as a result of the co-vulcanization thereof.

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