Magnetic disk device

Details Magnetic disk device Magnetic disk device

G - Physics

11

B

G11B 5/60 (2006.01) G11B 5/54 (2006.01) G11B 11/105 (2006.01) G11B 19/20 (2006.01)

Patent

CA 2050133

A magnetic disk device having a floating-type magnetic head, for use with a disk-shaped recording medium having a sliding area for the floating-type magnetic head formed outside a recording area. The length in the disk radial direction of a suspension supporting -the floating-type magnetic head is varied depending on individual magnetic disk devices. In another arrangement, a control means is provided for setting two reference values so that a radial position of the floating-type magnetic head detected by a detection section is compared with these reference values, and for alternating one of the preset reference values to the other reference value upon receiving a rotation stop signal. In still another arrangement, control means is provided, whereby a radial position for sliding of the floating-type magnetic head is randomly varied within the sliding area. According to these arrangements, since the radial position for sliding of the floating-type magnetic head is varied within the sliding area without being located at the same position, abrasion within the sliding area can be dispersed. As a result, it becomes possible to extend the longevities of the floating-type magnetic head and the recording medium.

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