Fluid pressure assisted rotary shaft seal with labyrinth bushing

Details Fluid pressure assisted rotary shaft seal with labyrinth bushing Fluid pressure assisted rotary shaft seal with labyrinth bushing

1983-09-12

1984-11-13

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

277 93SD, 384482, F16C 3378, F16C 3380

Patent

active

044821948

ABSTRACT:
A replaceable wear sleeve cartridge fixedly mounted to a housing bore carries internally the fixed race of an anti-friction bearing and a static seal race. The wear sleeve cartridge defines with a labyrinth preseal bushing fixed to the shaft, the basic elements of a labyrinth preseal and additionally resiliently couples through a seal wedge, a rotating seal race whose end face is both fluid pressure and resiliently biased against the end face of the annular static seal race.

REFERENCES:
patent: 4212475 (1980-07-01), Sedy
patent: 4253713 (1981-03-01), Chambers
patent: 4363490 (1982-12-01), Kuehn
patent: 4406462 (1983-09-01), Witten

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