Suspension, showing tie rod, steering arm, king pin (axis) ball joints

The kingpin is the main pivot in the steering mechanism of a car or other vehicle. Originally this was literally a steel pin on which the moveable, steerable wheel was mounted to the suspension. In more modern designs, it may not physically exist as an actual pin, but the axis around which the steered wheels pivot is still referred to as the kingpin (or kingpin axis). It is usually made out of metal. Download high resolution version (550x700, 64 KB)Left front wheel suspension of a Saab Quantum IV with double wishbones, showing kingpin axis, wheel hub, disc brake, steering arm and tire. ... Download high resolution version (550x700, 64 KB)Left front wheel suspension of a Saab Quantum IV with double wishbones, showing kingpin axis, wheel hub, disc brake, steering arm and tire. ... A pivot is that on which something turns. ... An automobile is a wheeled vehicle that carries its own motor. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... A driving wheel on a steam locomotive. ... The front suspension components of a Ford Model T. Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. ... The axis of rotation of a rotating body is a line such that the distance between any point on the line and any point of the body remains constant under the rotation. ...