Spindle motor

Details Spindle motor Spindle motor

1994-08-19

1996-06-18

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, H02K 714, H02K 2112

Patent

active

055280927

ABSTRACT:
A spindle motor comprises a stationary member, a rotor rotatably mounted by bearing means to the stationary member for holding a recording disk, a rotor magnet mounted to the rotor, and an armature mounted to the stationary member to seat opposite to the rotor magnet. In particular, the rotor includes a shaft, a hub extending outwardly and radially of the shaft, and a flange provided circumferentially of the hub which are integrally formed from a metal plate by plastic deformation process.

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patent: 3772544 (1973-11-01), Wrobel
patent: 4529901 (1985-07-01), Bartell
patent: 4634908 (1987-01-01), Sturm
patent: 4698542 (1987-10-01), Muller
patent: 4779165 (1988-10-01), Elsaesser et al.
patent: 4900958 (1990-02-01), Kitahara et al.
patent: 5025335 (1991-06-01), Stefansky
patent: 5148338 (1992-09-01), Fruge360
patent: 5173814 (1992-12-01), Elsasser et al.
patent: 5200866 (1993-04-01), Fruge et al.
patent: 5254895 (1993-10-01), Koizumi
patent: 5352947 (1994-10-01), MacLeod

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