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US 8,683,677 B2Granted
Methods for balancing a disk drive
AssigneeSeagate Technology LLC
InventorsDarius Alisantoso, Terence Cheekwong Cheng, S Selvaruban, Sok Li Goh
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Abstract
In certain embodiments, a hard disk drive includes at least one disk secured to a motor hub with a disk clamp. The disk clamp is positioned radially off-center with respect to the hub to balance a static drive imbalance. In certain embodiments, a method includes radially offsetting a disk clamp to offset a static drive balance.
Claims10
A method comprising:
- measuring an initial static drive imbalance that includes a magnitude and direction of a disk imbalance and a motor imbalance;
- and
- radially offsetting a disk clamp with respect to a motor hub to offset the measured static drive imbalance.
A method comprising:
- measuring a motor imbalance and disk imbalance;
- calculating a resultant of the measured motor and disk imbalances;
- and
- offsetting a disk clamp in an opposite direction of the calculated resultant to offset the motor and disk imbalances.
1 more element
Dependencies are inferred from the claim text.