Bearing with multiple lip seal

Details Bearing with multiple lip seal Bearing with multiple lip seal

1975-03-25

1976-05-11

Wood, Jr., M. H.

Cutlery

277 70, 277 94, 3081871, F16C 3376, F16C 3380

Patent

active

039558592

ABSTRACT:
An annular seal is located in the annular space between a housing and a relatively rotatable shaft mounted in the housing. The annular seal includes a plurality of axially spaced annular lips. An opening is provided through the annular lip facing the annular bearing space which contains lubricant and preferably an opening is provided through each of the other axially spaced annular lips. Also, preferably the opening through each annular lip is circumferentially spaced approximately 180.degree. from the opening through each adjacent lip in order to have a longer labyrinth passageway and to assure complete filling of the seal space between the sealing lips with lubricant.

REFERENCES:
patent: 3612547 (1971-10-01), Kan
patent: 3642335 (1972-02-01), Takahashi et al.
patent: 3768880 (1973-10-01), Howe
patent: 3854734 (1974-12-01), West
patent: 3858950 (1975-01-01), Otto

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