Hydro-dynamic fluid bearing device and manufacturing method of t

Details Hydro-dynamic fluid bearing device and manufacturing method of t Hydro-dynamic fluid bearing device and manufacturing method of t

1999-09-01

2000-06-13

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384107, 384123, F16C 1710

Patent

active

060740981

ABSTRACT:
A novel hydro-dynamic fluid bearing device is herein disclosed which comprises a cylindrical shaft, a substantially cylindrical bearing member for axially supporting the shaft rotatably in a cylindrical hole having a bottom surface, a supporting member fixed on one side of the shaft and the bearing member, and a rotation member fixed on the other side of the shaft and the bearing member and rotatably supported on the supporting member, grooves for generating hydro-dynamic fluid being formed on at least one of the outer peripheral surface of the shaft and the inner peripheral surface of the cylindrical hole of the bearing member, wherein the bearing member is made of a resin material, and the outer peripheral surface of the substantially cylindrical portion is fixed to an annular reinforcing member having a higher rigidity than the bearing member.

REFERENCES:
patent: 3758177 (1973-09-01), Williams
patent: 5096309 (1992-03-01), Nakasugi et al.
patent: 5791784 (1998-08-01), Ichiyama

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