Claims
- 1. An assembly comprising:
a spindle motor comprising:
a hub configured for rotation about an axis; and an extension protruding from the hub along the axis by a protrusion length; and a clamp having an inner edge defining a hole for receiving the extension.
- 2. The assembly of claim 1 in which the inner edge of the clamp has a height reference that is no less than the protrusion length.
- 3. The assembly of claim 1 in which the extension is a rotatable shaft of the spindle motor.
- 4. The assembly of claim 1 in which the extension and the hub is formed as a unitary body
- 5. The assembly of claim 1 in which the inner edge of the clamp is configured for interference fit with an outer surface of the extension.
- 6. The assembly of claim 1 in which the clamp further comprises an indentation feature such that its center of mass does not coincide with the axis.
- 7. The assembly of claim 6 in which the indentation feature is formed at an outer edge of the clamp.
- 8. The assembly of claim 1 further comprising a fastener which in engagement with the extension comes into abutment with the inner edge of the clamp.
- 9 The assembly of claim 8 in which the clamp is resiliently deformed by engagement with the fastener.
- 10. The assembly of claim 8 further comprising a first disc, the first disc being held against the hub of the spindle motor by a contact portion of the clamp.
- 11. A disc drive comprising:
a first disc; a spindle motor comprising:
a hub configured for bearing the first disc in rotational motion about an axis; and an extension protruding from the hub along the axis by a protrusion length; a clamp having an inner edge defining a cavity for receiving the extension; and a fastener which in engagement with the extension comes into abutment with the inner edge of the clamp.
- 12. The disc drive of claim 11 in which the inner edge of the clamp has a height reference that is no less than the protrusion length.
- 13. The disc drive of claim 11 in which the extension is a rotatable shaft of the spindle motor.
- 14. The disc drive of claim 11 in which the extension and the hub is formed as a unitary body
- 15. The disc drive of claim 11 in which the inner edge of the clamp is configured for interference fit with an outer surface of the extension.
- 16. The disc drive of claim 11 in which the clamp further comprises an indentation feature such that its center of mass does not coincide with the axis.
- 17. The disc drive of claim 16 in which the indentation feature is formed at an outer edge of the clamp.
- 18. The disc drive of claim 11 in which the clamp is resiliently deformed by engagement with the fastener.
- 19. The disc drive of claim 11 in which the first disc is held against the hub by a contact portion of the clamp.
- 20. A disc drive comprising:
a base; a disc stack assembly rotatably mounted to the base; and means for balancing the disc stack assembly.
- 21. The disc drive of claim 20 in which the disc stack assembly comprises:
a spindle motor having a hub with a central extension; and a disc carried on the hub, wherein the means for balancing comprises a clamp for securing the disc to the hub, the clamp being in engagement with the central extension at an inner edge.
- 22. The disc drive of claim 21 in which the central extension is a rotatable shaft of the spindle motor.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims benefit of U.S. Provisional Application No. 60/341,322 filed on Dec. 13, 2001.
Provisional Applications (1)
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Number |
Date |
Country |
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60341322 |
Dec 2001 |
US |