Sealing device

Details Sealing device Sealing device

2004-11-11

2009-06-23

Patel, Vishal (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Diverse and distinct dynamic seals

C277S394000, C277S402000, C277S551000, C277S572000, C384S147000, C384S484000, C384S485000

Reexamination Certificate

active

07549647

ABSTRACT:
The invention relates to a sealing device for roller bearings, comprising a journal seal (4), which is arranged upstream on the roller-ball side of the annular seal (8) which is connected in a rigid manner to an annular projection (7) of the bearing housing (5). The sealing lip (18) of the sealing device is applied to the front side (10) of the roller (1) by means of a sealing contact. The aim of the invention is to improve the sealing device in such a manner that the sealing lip of the annular seal is barely impinged upon by cooling means mixed by impurities, making it long lasting and ensuring that no undesired water can penetrate into said outlet. According to the invention, an L-shaped profile (11), in the cross-section, is rigidly connected to the first side (12) thereof by means of the front side (14) of the roller (1), such that the sealing lip (18) is applied to areas of the first side (12); such that the second side (13) of the L-shaped annular profile (11) is sealed to the roller balls at a certain distance from the annular seal (8) and regions of the annular projection (7); and such that the annular projection (7) comprises an outlet groove (9) which is arranged on the outer side and is open towards the outside.

REFERENCES:
patent: 4679801 (1987-07-01), Poloni et al.
patent: 4910987 (1990-03-01), Woodrow et al.
patent: 5421591 (1995-06-01), Katzensteiner
patent: 6146020 (2000-11-01), Innis, Jr.
patent: 6217219 (2001-04-01), Hoeting
patent: 7063193 (2006-06-01), Yoshida
patent: 296 20 018 (1998-02-01), None
patent: 694 10 752 (1998-09-01), None
patent: 0 860 637 (2001-12-01), None

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