Steering systems are used to set the direction of travel of motor vehicles. They transmit the steering movement of the driver from the steering wheel to the front wheels. Smoothness, shock absorption and driving safety are important aspects of directly and indirectly acting steering gears. In passenger cars, steering systems usually consist of steering column, steering gear and steering wheel. Steering gears with electronic or hydraulic support are distinguished in snail steering, finger steering, spindle steering, recirculating-ball steering and rack-and-piston steering. Steering systems work with torque sensors, control units and electric motors. They are, for example, available as rack-and-pinion hydraulic joints.