Cassette seal

Details Cassette seal Cassette seal

1982-10-27

1984-02-21

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 35, F16J 1532

Patent

active

044325576

ABSTRACT:
A cassette seal comprising an inner ring and an outer ring has angle or L-shaped profiles which are arranged together inside each other to form a substantially rectangularly bounded hollow space. The inner ring has a rubber coating (6) for support and sealing on an axle or shaft. The leg of one ring which extends in the radial direction and is facing away from the sealed-off medium has a sealing lip formed from an elastomer material which extends into the hollow space and rests against the leg of the other ring extending in the axial direction. The sealing lip is followed by at least one dust lip spaced at an axial distance away from the sealed-off medium. The leg of the other ring which is facing the sealed-off medium and which extends in the radial direction is sealed against the leg of the one ring extending in the axial direction by a labyrinth gap (12). The contact surface assigned to the dust lip changes into the contact surface assigned to the sealing lip without enlargement of the diameter.

REFERENCES:
patent: 3341264 (1967-09-01), Otto
patent: 4285526 (1981-08-01), Runteberg et al.

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