To provide a motor in which a stator core can be fixed easily in a housing and to particularly provide an inner rotor motor.

The motor includes a cylindrical housing 2 having protruding stripes 21 of a crest-like section, a stator core 32 in which a plurality of core pieces 31 having a core back 31a and teeth 31b are coupled through a coupling part, and each coupling part is bent to be annularly formed. The opposed surfaces of the core pieces 31 of both the ends of the stator core 32 are brought into contact with the protruding stripes 21, and disposed in the housing 2.