To provide a stator core which realizes low cogging torque without causing degradation of torque ripple and inductance, and to provide a motor equipped with the stator core.

Related to the stator core of an inner rotor type motor, where annular stator core plates are laminated, and a plurality of radial magnetic pole teeth are disposed with similar intervals on an inner peripheral surface. The magnetic pole teeth has a thin-walled part on both ends at tip. The thin-walled part has a gap of 2.5 mm or smaller from the thin-walled part of an adjoining magnetic pole teeth. The stator core plates are laminated, while being skewed.