Electric spindle motor

Details Electric spindle motor Electric spindle motor

1999-05-18

2000-02-01

LaBalle, Clayton

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, 310 905, 310 52, 384107, 384100, 384112, 384113, 384123, 384132, 384133, H02K 708

Patent

active

060206640

ABSTRACT:
An electric spindle motor has a base assembly (19) and a hollow notatable hub (16) housing a motor. The hub (16) is mounted for rotation about an axis and a stator (12) is mounted on the base assembly (19) inside the hub (16). A liquid filled journal bearing (11, 21) acts between the base assembly (19) and the hub (16) to provide radial support of the hub (16). A gas filled thrust bearing (26, 27, 35) also acts between the hub (16) and base assembly (19) to provide at least axial support of the hub (16).

REFERENCES:
patent: 5283491 (1994-02-01), Jabbar et al.
patent: 5714828 (1998-02-01), Ackermann et al.
patent: 5751085 (1998-05-01), Hayashi
patent: 5763967 (1998-06-01), Kurosawa et al.
patent: 5770906 (1998-06-01), Hazelton et al.
patent: 5835124 (1998-11-01), Fukita et al.
patent: 5847479 (1998-12-01), Wang et al.

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