Low power spindle motor with a fixed shaft

Details Low power spindle motor with a fixed shaft Low power spindle motor with a fixed shaft

2005-04-05

2005-04-05

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06700R, C384S112000

Reexamination Certificate

active

06876112

ABSTRACT:
A spindle motor for use in a disk drive having a base frame, a housing cover, a fixed shaft and a rotatable bearing sleeve. The fixed shaft has a larger diameter section and a smaller diameter section with a step formed therebetween. The rotatable bearing sleeve has a central cylindrical opening, the shaft being inserted into the central cylindrical opening. A bearing gap is formed between the fixed shaft and the rotatable bearing sleeve, the bearing gap being filled with lubricating fluid. One end of the fixed shaft is secured to the base frame while another end of the shaft is secured to the housing cover.

REFERENCES:
patent: 5277499 (1994-01-01), Kameyama
patent: 5427456 (1995-06-01), Hensel
patent: 5658080 (1997-08-01), Ichiyama
patent: 5667309 (1997-09-01), Nose
patent: 5825585 (1998-10-01), Hatam-Tabrizi
patent: 6307293 (2001-10-01), Ichiyama
patent: 6313967 (2001-11-01), Bodmer et al.
German Office Action dated Sep. 19, 2003.
German Office Action dated Sep. 22, 2003.

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