Spindle motor and hard disk drive including the same

A spindle motor comprising:

• a sleeve rotatably supporting a shaft;
• a rotor coupled to an upper end of the shaft and rotating together with the shaft;
• a stopper part coupled to a main wall part protruding from one surface of the rotor and facing an outer peripheral surface of the sleeve;
• a cover plate coupled to the sleeve while maintaining a clearance between the cover plate and lower portions of the shaft and the sleeve;
• a base member coupled to the cover plate;
• and
• a stator holder fixedly disposed on the base member,
• wherein the cover plate includes a closing part disposed below the shaft and the sleeve, a fixing part extended from the closing part in an axial direction and coupled to an outer peripheral surface of the sleeve, and a bent part extended from the fixing part so as to be coupled to the stator holder.