Multiple lip seal assembly with improved accuracy

Details Multiple lip seal assembly with improved accuracy Multiple lip seal assembly with improved accuracy

1992-01-22

1992-09-15

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

277 47, 277 95, 277152, 384477, F16C 3378, F16C 3376

Patent

active

051471396

ABSTRACT:
A bearing seal assembly has a flexible radial and axial seal lip, each of which is paired with a stiff locating register. The body of the seal is molded to a metal casing indirectly, by a hinge that is flexible, but still stiffer than the seal lips. The seal casing is installed to one of the bearing races, and another seal casing is installed to the other bearing race to provide sealing surfaces that engaged by the sealing lips and abutted by the locating registers. The hinge assures that the more flexible seal lips are deflected into the sealing surfaces, but the stiffer registers flex the hinge to assure that the lips are not deflected more than desired when the seal casings are closer together.

REFERENCES:
patent: 4497495 (1985-02-01), Christiansen
patent: 4572516 (1986-02-01), Symons et al.
patent: 4958942 (1990-09-01), Shimizu

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