Axial shaft sealing unit with improved housing

Details Axial shaft sealing unit with improved housing Axial shaft sealing unit with improved housing

1984-01-04

1985-03-05

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 42, 277 88, 277 50, 277 95, F16J 1536

Patent

active

045026947

ABSTRACT:
A slide ring seal intended for the sealing of a rotating machine component. The seal comprises an annular housing in which are accommodated a slide ring, a bellows-like secondary seal, and a counter ring which is arranged with force fit on the rotating machine component. The secondary seal bears via a spring axially on the slide ring. The counter ring, and hence the slide ring bearing thereon, are limited by stops in the axial direction in the housing. The counter ring bears directly on the rotating machine component, so that an additional holding member for accommodating the counter ring is not necessary. This permits a very considerable reduction in the plane running deviation of the counter ring slide face with respect to the rotatable machine component, which is extremely important to a satisfactory function of the slide ring seal. By eliminating the holding member, and by means of a static seal between holding member and counter ring, considerable production and assembly costs can be saved.

REFERENCES:
patent: 1519072 (1924-12-01), Tarlton
patent: 2411509 (1946-11-01), Endebak
patent: 3554559 (1971-01-01), Dahlheimer
patent: 3560003 (1971-02-01), Smith
patent: 4136885 (1979-01-01), Uhrner

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