Patent ID: 8629593

Claim:
A spindle motor comprising: a sleeve rotatably supporting a shaft; a sleeve holder supporting the sleeve and formed through a pressing process; a stator core fixedly mounted on an outer circumferential surface of the sleeve holder; and a pulling magnet fixedly mounted on an upper surface of the stator core, wherein the stator core includes a burr insertion stepped part formed in a lower portion of an inner diameter portion thereof, wherein the sleeve holder includes a cylindrical part supporting the sleeve; a seating part extending outwardly from a lower end of the cylindrical part in a radial direction and having the stator core seated thereon; and a coupling part extending from the seating part, formed to be bent therefrom, and attached to the base member, wherein the cylindrical part, the seating part and the coupling have the same thickness and wherein the burr insertion stepped part forms a closed space with the sleeve holder when the stator core is mounted on the sleeve housing.