Spindle motor

Details Spindle motor Spindle motor

1991-12-10

1992-10-06

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 88, H02K 714

Patent

active

051534703

ABSTRACT:
A spindle motor includes a bracket, a shaft member fixed to the bracket, a hub member rotatably mounted on the shaft member with a bearing member therebetween, a rotor magnet mounted on the hub member, a stator disposed in opposed relation to the rotor magnet, and a magnetic fluid sealing assembly disposed on on outer side of the bearings. The shaft member has an elastic sealing member which seals a through-hole formed in the shaft.

REFERENCES:
patent: 3310698 (1967-03-01), Krell
patent: 3700358 (1972-10-01), Papst et al.
patent: 3777191 (1973-12-01), Papst et al.
patent: 4588912 (1986-05-01), Shinmura et al.
patent: 4616149 (1986-10-01), Best
patent: 4636669 (1987-01-01), Plunkett et al.
patent: 4773828 (1988-09-01), Hagiwara et al.

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