| http://www.w3.org/ns/prov#value | - The aforesaid first object of the invention is achieved by the use of a magnetic-head slider support mechanism of a spring type in which a mechanism such as a gimbal, a pivot and the like adapted to make a magnetic head slider freely rotatable is not provided, a torsional rigidity of rotary motion of a magnetic head slider with respect to a guide arm is equal to or larger than 100 gfmm/rad, and th
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