styrepinne

A styrepinne, also known as a steering pin or kingpin, is a critical component in the steering mechanism of many wheeled vehicles, particularly trucks and trailers. Its primary function is to serve as the pivot point for the steering knuckle. The steering knuckle is the part of the suspension that holds the wheel hub, allowing the wheel to turn.

The styrepinne typically passes through holes in both the steering knuckle and the axle beam or suspension arm. This allows the knuckle to rotate around the styrepinne, enabling the wheels to change direction. The design and dimensions of the styrepinne are crucial for precise steering control and load bearing.

Styrepinnes are usually made of hardened steel to withstand the significant forces involved in steering and supporting the vehicle's weight. They are often equipped with bushings or bearings to reduce friction and wear at the pivot points. Maintenance of the styrepinne, including lubrication and checking for wear, is important for safe operation and to prevent premature failure of the steering system. Wear in the styrepinne or its associated bushings can lead to loose steering, uneven tire wear, and difficulty in maintaining straight-line stability.