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High speed spindle motor for disc drive

  • US 6,753,628 B1
  • Filed: 12/22/1999
  • Issued: 06/22/2004
  • Est. Priority Date: 07/29/1999
  • Status: Expired due to Term
First Claim
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1. A motor comprising:

  • a) a shaft having a rotational axis;

    b) a hub attached to the shaft and including a permanent magnet;

    c) a bearing allowing rotation of the hub about the rotational axis of the shaft;

    d) a stator comprising conductors;

    e) a monolithically formed body that substantially encapsulates the stator conductors, wherein a thermoplastic material is injection molded to form the body and the body is configured to align the shaft, hub and bearing with respect to the stator, and mounting features are formed in the body to mount the motor to a device to be powered by the motor; and

    f) an insert substantially encapsulated within the body, wherein the insert provides structural rigidity to the body.

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