High efficiency seal devices for shaft bearings

Details High efficiency seal devices for shaft bearings High efficiency seal devices for shaft bearings

1988-08-16

1989-05-23

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384478, 384482, 277 95, F16C 3378

Patent

active

048325112

ABSTRACT:
A seal system for a bearing having a housing with a chamber therein for receiving a shaft supported by a bearing assembly therein. The sealing system includes three and preferably four seal devices integrally related by means of a seal ring detachably retained within an exterior chamber of the housing. One of the seal devices is in the form a V-ring which has its flexible lip held in sealing engagement with a surface of the housing by the positioning of the ring in its operating condition. Another seal device in the form of a quad-ring, O-ring or the like is mounted in a groove in the ring and is held tightly fixed upon the shaft. The rotation of the seal ring provides a third seal device by being adapted to fling moisture and contaminants which may run along the shaft during rotation thereof. The fourth seal device is in the form of a labyrinth seal between a wall of the seal ring and a cooperating wall of the bearing housing. Each of the four seal devices provides a specific sealing characteristic and usefulness which combine to provide high efficiency sealing for large bearings allowing for extreme bearing misalignment.

REFERENCES:
patent: 3656824 (1972-04-01), Ullberg
patent: 4348067 (1982-09-01), Tooley
patent: 4763904 (1988-08-01), Martinie
patent: 4776709 (1988-10-01), Tooley

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