Patent ID: 7656066

Claim:
An electric motor ( 21 ) that comprises: an internal stator ( 50 ); an external rotor ( 22 ) having a shaft ( 34 ), which external rotor is configured as a rotor cup ( 24 ) having an outer side and an inner side ( 25 ); a bearing tube ( 70 ) for reception of a bearing arrangement ( 60 ) journaling the shaft ( 34 ), which bearing tube ( 70 ) has a first end portion ( 71 ) facing toward said inner side ( 25 ) of the external rotor ( 22 ) and being formed with an inwardly protruding stop ( 73 ), said tube having a second end portion ( 75 ) facing away from the first end portion ( 71 ) and being joined to a plastic part ( 80 ) that likewise forms an inwardly protruding stop ( 77 ) adjacent said second end portion ( 75 ), the bearing arrangement ( 60 ) being arranged in a chamber defined by the bearing tube ( 70 ) between said two inwardly protruding stops ( 73 , 77 ).