Patent ID: 8619387

Claim:
A disk drive device comprising: a base member; a hub; a clamper including an end that defines a central hole and configured to fix a recording disk to the hub radially outside of the end that defines the central hole; a bearing unit which is arranged on the base member and which rotatably supports the hub; and a spindle drive unit, which drives the hub to rotate, wherein the spindle drive unit includes a stator core having a salient pole, a coil wound around the salient pole, and a magnet configured with an outer diameter portion and a portion that is opposite to the salient pole, wherein the hub is formed of a magnetic material, wherein the base member includes a wire hole through which a wire for forming the coil passes, and a concavity that is formed at a bottom surface of the base member, at least a part of the concavity being arranged at a position that is radially outside of the outer diameter portion of the magnet, wherein the wire passes through the wire hole and is connected to a wiring member at the concavity at the bottom surface of the base member, and wherein the hub is provided with a fitting portion located radially outside of a space in the bearing unit for storing lubricant and configured to be fitted to the end of the clamper that defines the central hole.