Method of imbalance correction using a grooved disk clamp
AssigneeWestern Digital Technologies, Inc.
InventorsJoseph A. Perlas, Jambunathan Vangal-Ramamurthy
Life of this patent
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Abstract
A disk clamp that can engage a disk hub to couple a disk media to a disk hub, the disk clamp having a body portion, and a groove formed in a surface of the body portion and extending at least in a circumferential direction substantially parallel to at least a portion of the circumference of the disk clamp; and a balance weight installed in the groove formed in the surface of the disk clamp, the balance weight having a quantity of material applied in the groove. A disk drive assembly using the disk hub and a method of correcting a drive imbalance using the disk hub.
Claims16
A disk drive assembly comprising:
- a disk hub;
- a disk media;
- and
- an annular disk clamp that engages a radial surface of the disk hub to couple the disk media to disk hub,
- wherein the disk clamp comprises:
- a body portion having a transverse hole extending through the body portion;
- and
- a groove formed in a surface of the body portion and extending in a circumferential direction substantially parallel to at least a portion of the circumference of the disk clamp;
- and
- a balance weight installed in the groove formed in the surface of the disk clamp, wherein the balance weight comprises a quantity of material applied in the groove.
A disk clamp configured to engage a disk hub to couple a disk media to a disk hub, wherein the disk clamp comprises:
- an annular body portion having a transverse hole extending through the body portion, the body portion configured to engage a radial surface of the disk hub;
- and
- a groove formed in a surface of the body portion and extending at least in a circumferential direction substantially parallel to at least a portion of the circumference of the disk clamp;
- and
- a balance weight installed in the groove formed in the surface of the disk clamp, wherein the balance weight comprises a quantity of material applied in the groove.
A method of balancing a disk pack in a disk drive, the method comprising:
- providing a disk media, a disk hub and a disk clamp having a circumferentially extending groove formed in a surface thereof;
- positioning the disk media proximate to the disk hub;
- coupling the disk clamp to the disk hub to apply a clamping force to the disk media;
- determining an imbalance of the coupled disk clamp, disk hub, and disk media;
- and
- attaching a quantity of material so as to be in a stationary position within the groove to correct the imbalance.
Dependencies are inferred from the claim text.