Cassette shaft seal

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member

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Details

277 68, 277152, F16J 1532

Patent

active

047461284

ABSTRACT:
A cassette shaft seal in which the outer ring (3) and the inner ring (11) have an opposite angular profile and together enclose an annular space (5) of substantially rectangular cross section. This annular space is bounded by an outwardly projecting flange (8) of the inner ring (11), which revolves together with the shaft that is to be sealed. The gap remaining between the flange (8) and the outside ring (3) is expanded in cross section by segmental cutouts uniformly distributed around the circumference, through which, under normal operating conditions, the volume of liquid contained in the annular space (5) is constantly renewed.

REFERENCES:
patent: 4278260 (1981-07-01), Brown
patent: 4440401 (1984-04-01), Olschewski et al.
patent: 4522411 (1985-06-01), Burgan

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