Abstract: An electric machine, in particular a brushless DC motor, having a stator arrangement and a rotor arrangement that are arranged coaxially with respect to one another, the rotor arrangement having a rotor body and permanent magnets embedded in the rotor body, at least one magnetic sensor for the purpose of measuring the rotational position of the rotor body being disposed at an end face of the rotor body and being located directly opposite this end face

Abstract: The invention relates to a stator arrangement for an electric machine, particularly a DC motor, comprising a stator body having a stator back yoke ring and a number of stator teeth between which stator slots to receive stator windings are formed, the stator teeth extending radially from the stator back yoke ring and stator poles being formed at the free ends of the stator teeth, the stator teeth being coupled to a sleeve, which extends coaxially to the stator body, at their free ends. The invention also relates to a method for the manufacture of a stator arrangement of this kind and a direct current motor that employs such a stator arrangement.

Abstract: A rotor arrangement for an electric machine having a substantially cylindrical rotor body and a shaft on which the rotor body is mounted, wherein the rotor body is divided into a plurality of substantially identical rotor sections in at least one plane containing the axis of the shaft, and wherein the circumference of the shaft has at least one region to receive the rotor sections and the rotor sections are connected to the shaft in a positive fit in this region.

Abstract: A rotor body for the rotor of an electric machine having at least one rotor lamination which is formed in the way of a strip having a series of projections along a longitudinal edge of the strip and bent in the plane of the strip to form a ring, the projections extending inwards after the rotor lamination has been bent and the rotor lamination having a substantially unbroken outside edge.