A motor assembly having an outer stator , a rotor assembly , a separating can , and a bearing assembly with a first bearing and a second bearing , which rotor assembly has an inner rotor and a shaft and defines an axial direction and a radial direction of the motor assembly , which motor assembly has a magnetic air gap between the outer stator and the inner rotor , which separating can has a split tube section and a separating can base part , which split tube section has a split tube region , which split tube region extends through the magnetic air gap , which outer stator is disposed about the split tube region , which split tube section and which separating can base part overlap in a first predefined axial region , wherein a seal is provided in the first predefined axial region between the split tube section and the separating can base part , wherein the seal has a sealing member , wherein the split tube section has split tube section projections on its outer surface, wherein the outer stator has a stator core , a winding assembly , and a molded part , which molded part has a plurality of molded part projections , and which motor assembly defines a sealing member space in the first predefined axial region , which sealing member space - is radially inwards at least in sections defined by the split tube section radially inwards, - is radially outwards at least in sections defined by the separating can base part radially outwards, - is at least in sections defined on a first axial side by the separating can base part , and - is at least in sections defined on a second axial side situated opposite the first axial side by the split tube section projections or at least in sections by the molded part projections , wherein the sealing member is disposed in the sealing member space . which rotor assembly has an inner rotor and a shaft and defines an axial direction and a radial direction of the motor assembly , which motor assembly has a magnetic air gap between the outer stator and the inner rotor , which separating can has a split tube section and a separating can base part , which split tube section has a split tube region , which split tube region extends through the magnetic air gap , which outer stator is disposed about the split tube region , which split tube section and which separating can base part overlap in a first predefined axial region , wherein a seal is provided in the first predefined axial region between the split tube section and the separating can base part , wherein the seal has a sealing member , wherein the split tube section has split tube section projections on its outer surface, wherein the outer stator has a stator core , a winding assembly , and a molded part , which molded part has a plurality of molded part projections , and which motor assembly defines a sealing member space in the first predefined axial region , which sealing member space - is radially inwards at least in sections defined by the split tube section radially inwards, - is radially outwards at least in sections defined by the separating can base part radially outwards, - is at least in sections defined on a first axial side by the separating can base part , and - is at least in sections defined on a second axial side situated opposite the first axial side by the split tube section projections or at least in sections by the molded part projections , - is radially inwards at least in sections defined by the split tube section radially inwards, - is radially outwards at least in sections defined by the separating can base part radially outwards, - is at least in sections defined on a first axial side by the separating can base part , and - is at least in sections defined on a second axial side situated opposite the first axial side by the split tube section projections or at least in sections by the molded part projections , wherein the sealing member is disposed in the sealing member space . <EOS>