Radial oil seal

Details Radial oil seal Radial oil seal

1986-01-27

1986-11-18

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277166, F16J 1532

Patent

active

046231536

ABSTRACT:
An improved radial oil seal adapted to be disposed between a housing bore and a rotation shaft inserted therein for sealing of fluid in a housing. The radial oil seal includes a first seal ring having a rubber seal lip in sealing contact with the rotation shaft, a second seal ring having a synthetic resin seal lip and disposed at the air side of and adjacent the first seal ring, the synthetic resin seal lip extending along the back face of the rubber seal lip and being in sealing contact with the rotation shaft. A reinforcing ring having a substantial rigidity is disposed at the air side of and adjacent the second seal ring and curved along a bent portion of the synthetic resin seal lip so as to support the back face of the bent portion. An outer ring is fitted into the housing bore for firmly holding the radially outer portions of the first and second seal rings and the reinforcing ring.

REFERENCES:
patent: 2172325 (1939-09-01), Victor et al.
patent: 3099454 (1963-07-01), Walinski
patent: 4053166 (1977-10-01), Domkowski

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