Head stack assembly enabling independent control of a position of magnetic heads for access to different magnetic disks and support method thereof
First Claim
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1. A head stack assembly, comprising:
- a pivot assembly provided with a plurality of pivots that support a plurality of actuator blocks supporting head suspensions so as to be independently rotatable, while being arranged so that rotational axes thereof are made in series;
sleeves supported through bearings to the shaft; and
a spacer having an inner circumference that is abutted to an inner race of each bearing, the spacer also having an outer circumference that is positioned between the sleeves.
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Abstract
A hard disk drive is made small in size, large in storage capacity and high in data reading/writing speed. Two actuator blocks (3) are fixed to a sleeve 16A of a first pivot and sleeve (16B) of a second pivot, respectively. Position of magnetic heads to be accessed to different magnetic disks are controlled independently by the actuator block 3 basis. Therefore, it is possible to distribute the reading/writing processing to the plurality of magnetic disks and perform these processing in parallel, to thereby increase the data reading/writing speed while increasing the storage capacity.
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Citations
3 Claims
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1. A head stack assembly, comprising:
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a pivot assembly provided with a plurality of pivots that support a plurality of actuator blocks supporting head suspensions so as to be independently rotatable, while being arranged so that rotational axes thereof are made in series;
sleeves supported through bearings to the shaft; and
a spacer having an inner circumference that is abutted to an inner race of each bearing, the spacer also having an outer circumference that is positioned between the sleeves. - View Dependent Claims (2)
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3. A supporting method of a head stack assembly, comprising:
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supporting a plurality of actuator blocks that support head suspensions so as to be independently rotatable while being arranged such that rotational axes thereof are made in series;
supporting sleeves through bearings to the shaft; and
abutting an inner circumference of a spacer to an inner race of each bearing while an outer circumference thereof is positioned between the sleeves.
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Specification