| 摘要 |
<p>A disk drive for high speed transfer wherein undesired vibration due to unbalance of a disk is suppressed. A balancer is constructed by accommodating a predetermined number of spherical bodies in an annular track having a predetermined shape and is rotatable integrally and coaxially with the disk. The annular track of the balancer is divided into sections by partitions so that balls acting as balancing members are movably arranged in the sections. The disk is clamped on both or one side by four or more projections or a rubber sheet.</p> |
