Seal for bearing bushings

Details Seal for bearing bushings Seal for bearing bushings

1988-04-07

1989-02-21

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

277152, F16C 3378

Patent

active

048060267

ABSTRACT:
A seal for bearing bushing with a sealing ring in a bore of the bearing bushing having a sealing surface which rests against a cylindrical surface of a machine part supported in the bearing bushing. An auxiliary seal is located between the open end of the bearing bushing and a shoulder of the machine part. The auxiliary seal has a ring-shaped collar extending in the axial direction, by which it is connected to the bearing bushing and at least one sealing lip bearing against the bearing bushing. The ring-shaped collar is pretensioned with radial pretension. The auxiliary seal has axially oriented projections located in a ring-shaped recess on the side facing the bearing bushing and each projection is situated over a portion of its length on a tongue of the ring-shaped collar.

REFERENCES:
patent: 4512672 (1985-04-01), Olschewski et al.
patent: 4576382 (1986-03-01), Scharting et al.
patent: 4614446 (1986-09-01), Dreschmann et al.
patent: 4674755 (1987-06-01), Colanzi et al.

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