Method and apparatus for mechanically balancing the disk pack of a hard disk drive
AssigneeSamsung Electronics Co., Ltd.
InventorsGregory Tran, Ed Aguilar, Shiao-Hua Chen, Woo-Sung (William) Kim
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Abstract
The invention includes a method making a balanced disk pack for a hard disk drive, from a disk pack including a spindle motor rigidly coupled, and aligned by at least two open screw holes, with a disk clamp. The invention includes the resulting balanced disk packs, as well as hard disk drives built with such balanced disk packs. The invention also includes apparatus providing the means for implementing the steps of making a balanced disk pack from a disk pack. The invention includes at least one mechanical counterbalance for use in balancing the disk pack of a hard disk drive.
Claims21
A method of making a balanced disk pack, for a hard disk drive, from a disk pack including a spindle motor rigidly coupled, and aligned by at least two open screw holes, with a disk clamp,
- wherein said method comprises, for each of said open screw holes, of the steps of:
- analyzing said disk pack for a balancing operation for said open screw hole;
- performing said balance operation for said open screw hole, further comprising said steps of:
- selecting a mechanical counterbalance for said open screw hole to create a selected counterbalance of a total mass, if a balance action is determined for said open screw hole;
- and
- inserting said selected counterbalance into said open screw hole until said mechanical counterbalance locks into said open screw hole to at least partially create said balanced disk pack, if said balance action is determined for said open screw hole.
Dependencies are inferred from the claim text.