Bearing unit, and motor and electronic equipment, both...

Details Bearing unit, and motor and electronic equipment, both... Bearing unit, and motor and electronic equipment, both...

2004-10-21

2008-10-21

Hannon, Thomas R (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

C384S903000

Reexamination Certificate

active

07438475

ABSTRACT:
A bearing unit comprises a shaft, a radial bearing for supporting the shaft in a peripheral rotation direction of the shaft, a thrust bearing supporting an end of the shaft in a thrust direction of the shaft, a housing made of a molded body of a synthetic resin, inside of which housing the radial bearing and the thrust bearing are arranged, the housing having a sealed configuration except for a shaft insertion hole, through which the shaft is inserted, a slip-out preventing member provided on an end side of the radial bearing at which the thrust bearing is provided, the slip-out preventing member preventing the shaft from slipping out from the radial bearing, and a viscous fluid filled in the housing. The slip-out preventing member is made of a material having a thermal deformation temperature higher than a temperature applied to the slip-out preventing member upon molding of the housing.

REFERENCES:
patent: 3663849 (1972-05-01), Heob
patent: 6832853 (2004-12-01), Fujinaka
patent: 05-087126 (1993-04-01), None
patent: 2003-130043 (2003-05-01), None
patent: 2003-130043 (2003-05-01), None
patent: WO 02/10602 (2002-02-01), None
Japanese Office Action; Application No. 2003-385547; Dated: Apr. 10, 2007.

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