Patent ID: 8076806
Filing Date: 2011-12-13
Classification: H02K

Abstract:
1. A spindle motor comprising: a base; a bearing housing installed on the base; a bearing fixed inside the bearing housing; a rotation shaft rotatably installed into the bearing; a stator disposed around the bearing housing; a bushing coupled to the rotation shaft, wherein the bushing is coupled through being press-fitted to the rotation shaft; a rotor coupled to the bushing to rotate through interaction with the stator, wherein the rotor comprises a rotor yoke coupled to the bushing and a magnet coupled to the rotor yoke, and wherein the rotor yoke is coupled through adhesion to the bushing; a rubber liner installed on an upper surface of the rotor yoke; and a clamp coupled to the rotor yoke, wherein the clamp is configured to elastically support a disk mounted on the rotor yoke, wherein the bushing is spaced from the clamp, wherein an uppermost surface of the bushing is lower than an uppermost surface of the clamp, and wherein a lowermost surface of the bushing is higher than a lowermost surface of the clamp.