eyes to circuit board 28 this circuit board 28 also has an opening for the contact receptacles 43 the circuit board 28 lies axially against the spacers 31 b and radially against the centering pins 44 a 44 b and is screwed to the fastening bushings 30 with screws 49 so that they also fasten heat conducting element 25 and the stator return in addition to the circuit board 28 fig1 shows the arrangement from fig9 with mounted motor housing 50 which is in one piece with a plug housing 51 into which a plug 52 is inserted the motor housing is also in one piece with screw fastening eyes 38 in which these coincide with the screw fastening eyes 37 of partition 11 and the screw fastening eyes 36 of the pump housing fig1 shows a view from the opposite perspective of the partition 11 with the motor housing connected to it the partition 11 and the motor housing delimit the dry space in which the stator of the dc motor is situated the partition 11 is in one piece with a bearing mount 53 to accommodate an axial bearing to support the pump rotor fig1 shows a view from the same perspective of the stator poles 14 with the insulation elements 15 windings 16 and the hollow cylindrical area of the heat conducting element 25 fig1 a 13 b show views of the heating conducting element 25 with an opening 55 a for the centering pins 44 a three openings 56 a for the.