Patent ID: 8484669

Claim:
A motor, comprising: a base plate including a protrusion supporting part protruded upwardly in an axial direction by pressing work, so as to form a receiving part as a recess in an inner side of the protrusion supporting part; and a sleeve holder including a cylindrical shaped body part to which a cylindrical shaped sleeve is fastened in an inside of the sleeve holder, a stator seating part extending outwardly from a lower end portion of the body part in the radial direction, an extension part extending downwardly from an end portion of the stator seating part in the axial direction and having an outer diameter greater than that of the body part, and a flange part horizontally protruded in an outer diameter direction from a lower end portion of the extension part so as to make a surface contact with an upper surface of the base plate; a shaft rotatably inserted into the sleeve; and a thrust plate supporting a lower end portion of the shaft, wherein the sleeve holder is fastened to the base plate in a state of being seated on the base plate, so as to be disposed on an outer side of the receiving part, the thrust plate is received in the receiving part formed as the recess in the protrusion supporting part of the base plate, and the receiving part includes a stepped part vertically protruded from a side wall of the receiving part in a direction in which an outer diameter is reduced, and a thrust groove formed in a center portion of the stepped part having a size corresponding to the thrust plate, the thrust plate being received in the thrust groove.