Hard disk drive having an actuator whose length is less than the distance between its axis of rotation and the axis of rotation of a disk of the drive
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United States of America Patent
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Oct 16, 2012
Grant Date -
Sep 30, 2010
app pub date -
Jan 12, 2010
filing date -
Mar 30, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a hard disk drive (HDD), a ratio of the distance R between the axis of rotation of an actuator and a magnetic head to the distance R0 between the axis of rotation of the actuator and the center of a disk is in the range of 0.9 to 0.96. Thus, the deviation of the skew angles for the tracks from 0 degrees is minimized and yet a swing arm of the actuator can be relatively short. Accordingly, not only is the recording density maximized, but the HDD can be small and light as well.
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