| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide rotating equipment which is capable of preventing failure when fixing a recording disk to a rotating body.SOLUTION: Rotating equipment includes: a rotating body 28 which includes a fitting part 28b fitted to a center hole of a recording disk and having a male screw groove 28d on an outer peripheral surface thereof and a placing part 28c which is provided on the outer peripheral side of the fitting part and on which the recording disk is placed, and is supported freely rotatably around a rotational axis; and a fixing member which has an engagement hole of which the inner peripheral surface a female screw groove to be engaged with the male screw groove is provided on, and is engaged with the fitting part to fix the recording disk between the fixing member and the placing part. The fitting part has a slope 28k of which the inner peripheral edge is nearer to the rotational axis than the deepest part of the male screw groove and the diameter in a plane perpendicular to the rotational axis is increased toward the placing part in an axial direction parallel with the rotational axis, in an end part opposite to the placing part in the axial direction.</p> |
