Patent ID: 8289655

Claim:
A hard disk drive (HDD) comprising: a disk having a recording region containing a plurality of tracks each extending in the circumferential direction of the disk, the tracks being concentric with respect to a center of the disk; a magnetic head operative to read information from and/or record information on the recording region of the disk; and an actuator supported so as to be rotatable about an axis, the magnetic head being supported by the actuator so as to rotate therewith about said axis, the ratio R/R 0 of the HDD being in the range of 0.9 to 0.96 wherein R is the distance between the axis of rotation of the actuator and the magnetic head, and R 0 is the distance between the axis of rotation of the actuator and the center of the disk, and wherein the absolute value of the angle at which the magnetic head is skewed relative to any of the tracks, in a plane parallel to the disk, when the magnetic head is positioned by the actuator over the track is smallest for the radially outermost one of the tracks in the recording region of the disk.