Grease purgeable bushing seal

Details Grease purgeable bushing seal Grease purgeable bushing seal

1974-05-30

1979-09-04

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277182, F16J 1532

Patent

active

041666283

ABSTRACT:
A narrow cross section (about 0.110 inch) grease purgeable bushing seal that can be installed in the same housing bore diameter as that of the bushing without the need for machining a larger counter bore in the housing, including a metal shell with a radially inwardly turned flange at the bushing side thereof, and an elastomeric sealing element molded and bonded to the shell. To be grease purgeable, the seal parameters must be within the following ranges for the cross-sectional thickness E, the lip clearance A, the lip thickness B, the lip beam length C, the orifice D and the interference i, as follows:

REFERENCES:
patent: 1580701 (1926-04-01), Travers
patent: 2816784 (1957-12-01), Stucke
patent: 2930643 (1960-03-01), Mastrobattista et al.

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