Chassis actuator

A chassis actuator for adjusting a movably mounted component of a vehicle chassis, comprising:

• a first actuator component for connecting to the movably mounted component;
• a second actuator component for connecting to a positionally fixed chassis component;
• a ball screw, which can axially adjust the first actuator component, comprising a threaded spindle and a nut which runs on the threaded spindle;
• two bearings axially spaced from one another radially surrounding the nut;
• a drive motor, which can drive the nut, comprising a stator arranged coaxially with respect to the nut, for axial adjustment of the threaded spindle and
• a rotor, which is rotatably mounted on the nut by the two bearings;
• and
• a wrap spring axially aligned with said bearings and radially surrounding the nut coupling the nut to the rotor such that rotational movement of the rotor rotates the nut and external chassis forces acting on the nut are counteracted by the wrap spring and,
• a further fixed bearing having an extension, said extension radially surrounding said wrap spring.