Disk blade bearing hub assembly

Details Disk blade bearing hub assembly Disk blade bearing hub assembly

2006-07-11

2006-07-11

Joyce, William C (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S478000, C384S486000, C384S489000, C172S394000

Reexamination Certificate

active

07073949

ABSTRACT:
A maintenance free repetitive sealing system for a disk blade bearing hub utilizing an integrated system of components to seal and protect the primary bearing seal. The blade side of the spindle includes a hub overlap portion which deflects dirt, keeps large debris out, and prevents wrapping. A plastic seal protector keeps dirt and debris from pushing directly into external seal lips of a multiple lip seal. The lip seal provides positive sealing and is backed up by a grease layer barrier. The hub overlap, plastic seal protector, and grease barrier protect the bearing seal. The back side of the bearing hub is positively sealed with a protected O-ring and dust cap combination. The cap combination also protects the blade mounting hardware threads and nut.

REFERENCES:
patent: 1584616 (1926-05-01), Cothran
patent: 2652291 (1953-09-01), Magarian
patent: 2783103 (1957-02-01), Hamilton
patent: 3628837 (1971-12-01), Otto
patent: 3792912 (1974-02-01), Howe et al.
patent: 3932006 (1976-01-01), Tertinek et al.
patent: 3980355 (1976-09-01), Gilles
patent: 4699526 (1987-10-01), Sato
patent: 5267619 (1993-12-01), Eversole
patent: 5785129 (1998-07-01), Keller et al.
patent: 6158523 (2000-12-01), Gengler et al.

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