Bearings – Rotary bearing – Plain bearing
Patent
1981-02-26
1983-07-05
Ward, Jr., Robert S.
Bearings
Rotary bearing
Plain bearing
114 23, 277 65, 277 83, 277176, F16J 1526, F16J 1556, F16C 3374
Patent
active
043914748
ABSTRACT:
A seal for a thrust shaft in a body wherein the body has a bore and a counterbore, the bottom of the counterbore providing a shoulder for the thrust force of the shaft. The seal includes a bearing sleeve which is slidably mounted on the shaft, the bearing sleeve having a static O-ring which seals the interior of the sleeve to the shaft and a flange which extends into the counterbore. Provision is made for radially fixing the bearing sleeve to the shaft. A ring-shaped seal housing is mounted about the shaft below the bearing sleeve and extends into the counterbore, the seal housing having an interior dynamic O-ring sealing the housing to the shaft and an exterior static O-ring which seals the housing to the counterbore.
REFERENCES:
patent: 1668976 (1928-05-01), Peet et al.
patent: 2648554 (1953-08-01), Gilbert
patent: 2694453 (1954-11-01), Longeval et al.
patent: 2851982 (1958-09-01), Fogarty
patent: 2950931 (1960-08-01), Englesson
patent: 3101200 (1963-08-01), Tracy
patent: 3420535 (1969-01-01), Hershey
patent: 3608509 (1971-09-01), Brooks et al.
patent: 3765689 (1973-10-01), Adams
patent: 4007940 (1977-02-01), Chapa
patent: 4114899 (1978-09-01), Kulzer et al.
patent: 4155559 (1979-05-01), Sieghartner
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