Motor
申请公布号:US2003222524(A1)
申请号:US20030383543
申请日期:2003.03.10
申请公布日期:2003.12.04
发明人:KATO KYOJI
分类号:F16C17/10;H02K5/16;H02K5/24;H02K7/08;H02K21/22;(IPC1-7):H02K5/16
主分类号:F16C17/10
摘要:A magnet 5 is disposed radially outward to a fitting portion 8. Thereby, an armature 3 to be disposed so as to face the magnet 5 may be arranged radially outward. It is possible to keep a large space for the arrangement of a fluid bearing to be disposed radially inward to the armature, and, as a result, the fluid bearing having a large size may be used. The large sized fluid bearing 40 is used for keeping a high mechanical strength, avoiding a fear that the fluid bearing 40 would be damaged when it receives a shock, and also avoiding the reduction in rotational speed of the magnetic disk 7, the degradation of accuracy in the writing and reading operation of magnetic data and the generation of a noise or a vibration The fluid bearing 40 is used to reduce a friction even if the motor is rotated at a high speed, which may reduce the power consumption.
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