Bearing unit and motor using bearing unit

Details Bearing unit and motor using bearing unit Bearing unit and motor using bearing unit

2007-06-28

2009-12-01

Nguyen, Tran N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C384S107000, C360S099080

Reexamination Certificate

active

07626296

ABSTRACT:
A bearing unit includes a radial bearing; a thrust bearing; a path forming member; a housing; viscous fluid; and a communicating path. The communicating path has an axial path formed in the axis direction on a circumferential face of the radial bearing and a second end side path formed on the second end side face of the radial bearing. The second end side path is formed by a plurality of projections formed on one of the second end side face of the radial bearing and a face of the housing opposing to the second end side face of the radial bearing. The cross section of the second end side path has a cross sectional area greater than that of the cross section of the axial path.

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Japanese Office Action dated Apr. 9, 2008 for Application No. 2006-185985.
Japanese Office Action issued on Feb. 24, 2009 corresponding to JP Application No. 2006-185985.

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