Antifriction bearing unit and water pump

Details Antifriction bearing unit and water pump Antifriction bearing unit and water pump

2005-03-15

2005-03-15

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Resilient, flexible, or resiliently biased

C415S229000, C415S231000

Reexamination Certificate

active

06866476

ABSTRACT:
An antifriction bearing unit comprises a rotating shaft, an outer ring, and rolling members. The rotating shaft comprises a large-diameter shaft portion serving as an inner ring and a small-diameter shaft portion, which is hollow and has a fitting portion of increased diameter at one end thereof. The large-diameter shaft portion has an end portion fitted and fixed in the fitting portion of the small-diameter shaft portion. The fitting portion has an outward flange integral with an end thereof. The outer ring is fixedly provided with a seal member having lips slidable in contact with the flange and the outer peripheral surface of the large-diameter shaft portion, respectively.

REFERENCES:
patent: 2662480 (1953-12-01), Cliborn
patent: 2749156 (1956-06-01), Cliborn
patent: 4824324 (1989-04-01), Mitsumaru et al.
patent: 4992023 (1991-02-01), Baker et al.
patent: 5482432 (1996-01-01), Paliwoda et al.
patent: 1 135 719 (1957-05-01), None
patent: 11153096 (1999-06-01), None

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