Bearing Structure and Spindle Motor Having the Same

Abstract

A spindle motor is disclosed, wherein the spindle motor includes a bearing housing coupled to the base plate, a bearing disposed in the bearing housing, and a rotating shaft inserted into the bearing to rotatably support to the bearing, a portion of bearing protruded from a circumferential face of the bearing is press-fitted into an inner face of the bearing housing.

What is claimed is: 
     
         1 . A spindle motor, comprising:
 a rotating shaft;   a bearing rotatably supporting the rotating shaft, and including a convex portion formed at a portion of a circumferential face of the bearing; and   a bearing housing receiving the convex portion of bearing, the bearing housing including a concave portion press-fitted into two side faces of the convex portion, and the concave portion spaced apart from an upper face that is perpendicular to the two side faces of the convex portion.   
     
     
         2 . A bearing structure comprising:
 a bearing for rotatably supporting a rotating shaft;   a bearing housing receiving the bearing and supporting a circumferential face of the bearing; and   a contraction preventing portion for preventing contraction of an inner face which is opposite to the circumferential face of bearing while the bearing is press-fitted into the bearing housing.   
     
     
         3 . The bearing structure of claim  18 , wherein the contraction preventing portion includes a convex portion protruded from a radial direction of the bearing and a concave portion formed at a position corresponding to the convex portion of the bearing, and wherein two side faces opposite to each other are press-fitted into the convex portion. 
     
     
         4 . A bearing structure comprising:
 a bearing rotatably supporting a rotating shaft and the bearing including a convex portion protruded from a portion of circumferential face of the bearing; and   a bearing housing receiving the bearing, the bearing housing including a concave portion press-fitted into the two side faces of the convex portion and the concave portion spaced apart from an upper face that is perpendicular to the side faces of the convex portion.