Steering system for a motor vehicle

An electromechanical braking device for a motor vehicle, comprising:

• an actuating device which is driveable by at least one electric motor and by which a brake part is adjustable;
• wherein the motor has a stator and a rotor, which is rotatably mounted therein about a motor axis;
• wherein the stator has a stator outer diameter and a stator inner diameter and comprises a number of radially inwardly projecting stator teeth which are distributed over the circumference, have a tooth width in the circumferential direction on the stator outer diameter and between which a stator gap having a gap width is in each case located on the stator inner diameter, and which support at least one stator winding;
• wherein the rotor comprises a rotor diameter and a number of poles, which deviate from the number of stator teeth, of rotor magnets which are distributed over the outer circumference, are in the form of permanent magnets and extend in a rod-shaped manner axially parallel to the rotor axis, and which each have a radial magnet thickness and a magnet width in the circumferential direction, and the rotor magnets are each spaced apart at a magnet distance on the rotor diameter;
• wherein a radial air gap having a radial air gap width is formed between the stator teeth and the rotor magnets;
• wherein the ratio of the magnet thickness to the magnet width is between 0.4 and 0.55.