Hybrid orbital fluid dynamic bearing motor

Details Hybrid orbital fluid dynamic bearing motor Hybrid orbital fluid dynamic bearing motor

2007-10-23

2007-10-23

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

C384S901000

Reexamination Certificate

active

11021702

ABSTRACT:
Hybrid orbital fluid dynamic bearing motors are disclosed. The motors achieve improved efficiency advantages observed in fluid dynamic bearing motors containing an orbital ring. In addition, the hybrid orbital FDB motor has serial thrust bearings and traditional style journal bearings, which provide typically higher radial and angular stiffness not observed in previous orbital fluid dynamic bearing motor designs. Designs for centering orbital rings are also disclosed.

REFERENCES:
patent: 5223758 (1993-06-01), Kataoka et al.
patent: 6154339 (2000-11-01), Grantz et al.
patent: 7073944 (2006-07-01), Aiello et al.
U.S. Appl. No. 10/676,672, filed Jul. 11, 2006, Aiello et al.

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