Device for sealing shaft bearings or shaft bearing housings

Details Device for sealing shaft bearings or shaft bearing housings Device for sealing shaft bearings or shaft bearing housings

1987-09-21

1989-06-20

Hornsby, Harvey C.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

384486, 384489, F02F 1100

Patent

active

048403857

ABSTRACT:
The invention relates to a device for sealing shaft bearings or shaft bearing housing, in particular of self-aligning roller bearings for prepressing rollers or the like, having a special ring or special sleeve which surrounds the shaft, is advantageously made of stainless steel and has on the outer circumferential surface at least one annular projection which extends into at least one annular groove at at least one end of the bearing housing. According to the invention the concern here is primarily to inexpensively develop bearing housings, in particular production bearing housings, for operating conditions with exacting requirements on the sealing of the bearing. According to the invention this is mainly achieved when the annular projection or projections (7) of the special ring or special sleeve (2) inserted in the housing (1) and enclosing the shaft with sealed (3') clearance are fitted into the housing groove(s) (10) for the standard seal(s) (6) of production bearing housings (1), and when at least one, expediently two annular recesses (3) for a radial lip seal(s) (3') are provided on the inner circumferential surface (9), preferably on the front end(s) (11,12) of the special ring or special sleeve (2).

REFERENCES:
patent: 3550974 (1970-12-01), Kupchick
patent: 3770991 (1973-11-01), Ladin
patent: 3770993 (1973-11-01), Shultenkamper
patent: 4093324 (1978-06-01), Carrigan
patent: 4304409 (1981-12-01), Orlowski
patent: 4348067 (1982-09-01), Tooley
patent: 4611931 (1986-09-01), Brandenstein

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