Patent ID: 8791612

Claim:
An electric motor, comprising: a stator core; a housing fastened at an end of the stator core; an output shaft stuck out from an end face of the housing at an opposite end of the stator core; an air purge device having an inner circumferential surface and a mounting surface, the inner circumferential surface surrounding an outer circumferential surface of the output shaft, the mounting surface being mounted on the end face of the housing at the opposite end of the stator core, the air purge device being configured to supply air to a clearance between the inner circumferential surface of the air purge device and the outer circumferential surface of the output shaft; and a fastening part fastening the air purge device to the end face of the housing in a detachable manner, wherein the housing and the air purge device respectively have fitting parts at which the housing and the air purge device are fitted to each other when mounting the air purge device to the end face of the housing.