Shock absorber shaft seal

Details Shock absorber shaft seal Shock absorber shaft seal

1995-12-11

1997-09-09

Young, Lee W.

Brakes

Internal-resistance motion retarder

Including seal or guide

277208, 277215, F16F 936

Patent

active

056646518

ABSTRACT:
A shaft seal suitable for use in gas-filled shock absorbers. The shaft seal (20) includes an annular elastomeric sealing member (34) having a first sealing lip (46) and a second sealing lip (48). The first sealing lip (46) has a frustoconical air-side sealing surface (54) and a series of spaced annular projections (66) contiguous thereto. The second sealing lip (48) has a frustoconical air-side sealing surface (62) and a series of spaced annular grooves (70) contiguous thereto. The first sealing lip (46) provides an excellent lubrication capability whereas the second sealing lip (48) provides a high sealing capability.

REFERENCES:
patent: 4155560 (1979-05-01), Repella
patent: 4560177 (1985-12-01), Riley, Jr.
patent: 5507505 (1996-04-01), Von-Arndt et al.

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