Patent ID: 6445544
Filing Date: 2002-09-03
Classification: G11B

Abstract:
A magnetic disk unit comprising:a magnetic disk attached to a spindle so as to be rotatable; a slider, having a length and a width, which has a first pad, having a magnetic head for reading/writing data onto/from said magnetic disk located substantially in the center of said slider width, and second pads; a suspension to provide said slider with a predetermined load, a load point on said suspension positioned a distance from a leading edge of said slider which is substantially 0.42 times said length of said slider, said load point matching a center of impact; a gimbal coupled to said suspension; and an actuator arm, to position said slider on the magnetic disk, attached to said suspension, wherein the second pads are separated from the magnetic disk to fly thereabove by an air flow caused by rotation of the magnetic disk, and when the slider is seek-positioned on a certain track on the magnetic disk by the actuator arm via the suspension, a frictional force exerted between said slider and said disk is smaller than a product of lateral stiffness of said suspension in a seeking and positioning direction and a track width.