Patent ID: 7461391

Claim:
A spindle motor comprising: a bearing housing having an inner cylindrical surface of which a bearing is forcedly inserted into; a rotation shaft having an upper portion of which is exposed to an upper portion of the bearing housing and a lower portion of which is supported by the bearing; a core installed on an outer side of the bearing housing and wound by a coil; a rotor yoke surrounding the core and coupled with a vertical center portion of the rotor axis; a magnet adhered to an inner cylindrical surface of the rotor yoke to be opposed to the core; and an integral turntable including: a forcibly inserting unit inserted forcibly into the upper portion of the rotation shaft, a table unit extending to the outer side of the forcibly inserting unit and allowing a rotating body to be installed thereon, an inner side wall and an outer side wall extending downwards spaced from each other to allow a ball to be inserted therebetween, and a ball cover coupled with the lower surface of the inner side wall and the outer side wall, wherein an inner cylindrical surface of the inner side wall is slanted as it travels downwards, the inner cylindrical surface of the inner side wall extending substantially from a lower surface of the table unit substantially to the ball cover, wherein all portions of the inner cylindrical surface of the inner side wall slant inwards as the inner cylindrical surface travels downwards.