Patent ID: 8044545

Claim:
A direct-current motor comprising: a stator having a plurality of coils arranged thereon; a rotor having a plurality of magnetic poles arranged facing an inner periphery of said stator; a current-carrying part provided on one end portion of said rotor, for commutating a current supplied from a power source to feed the current to the coils of said stator; a ball bearing for supporting said rotor; a bearing for supporting said rotor, having a lower load-bearing capacity compared to that of said ball bearing, and at least a part of said bearing being accommodated in an opening formed in said current-carrying part; and a metal member being in contact with an outer ring of said ball bearing, the outer ring of said ball bearing insert-molded with said stator, wherein: said rotor is provided with a second metal member on the other end portion thereof such that the second metal member is in direct contact with an inner periphery of said ball bearing to hold an inner ring of said ball bearing and said rotor in position with respect to each other, a portion of the second metal member is provided along the inner periphery of the ball bearing such that the portion of the second metal member is disposed between the rotor and the inner periphery of the ball bearing.