| 摘要 |
<p>A storage device wherein at least one magnetic disc rotated by a spindle motor is fixed to a motor hub by a clamp ring and information is read from and written on the magnetic disc by a head attached to the end of a swing arm and the clamp ring is screwed to the motor hub and a balance wire is inserted in a balance adjustment recess formed in the outer periphery of the clamp ring. In the storage device, a first portion from the inner periphery to a disc pressing portion of the clamp ring and a second portion outside the balance adjustment recess are formed of a different material. The first portion may be formed of stainless steel, while the second portion may be formed of synthetic resin or aluminum.</p> |
