Patent ID: 8607257

Claim:
A spindle motor, comprising: a base plate; a bearing housing coupled to the base plate; a rotating shaft connected to the bearing housing; a rotor coupled to the rotating shaft; a stator mounted on an outer surface of the bearing housing to rotate the rotor; a turntable coupled to the rotating shaft, and supporting the rotating shaft and a disc; a centering unit fitted over the rotating shaft, and supporting an inner circumference of the disc; and a coil spring interposed between the turntable and the centering unit to elastically support the centering unit, wherein a first end of the coil spring is brought into contact with a spring hanging portion protruding from a side surface of the centering unit, and a second end opposite to the first end of the coil spring is supported by a spring support portion formed in the turntable, wherein the bearing housing includes a bearing to rotate the rotor, wherein the stator includes a core coupled to an outer circumference of the bearing housing, and a coil wound around the core, and wherein the rotor includes a yolk having a burring part coupled to the rotating shaft, and a magnet attached to an inner surface of the yoke and facing the core.