Storage disk collectorless drive motor

摘要

The disk drive arrangement includes a drive part and a ring part (5) made of material with the same thermal deformation characteristic. Magnetic washers are disposed in both axial end regions. The drive part is made of a soft magnetic light metal, and is part of the outer rotor.The drive part is bell-shaped, and the ring part is disposed at the open end of the drive part. At least two-thirds of the axial length of the stator winding and motor magnet are located in the region surrounding the disk carrier section of the hub.