kääntöakseliin

Kääntöakseliin, often translated as "kingpin" in English, is a crucial component in the steering system of wheeled vehicles, particularly in heavy-duty trucks, buses, and trailers. It is the pivot point around which the wheel assembly, including the steering knuckle and the wheel itself, rotates. This rotation allows the vehicle to change direction. The kingpin is typically a hardened steel pin that passes through bushings within the steering knuckle and the axle beam. Its precise angle, known as the steering axis inclination or KPI, significantly influences the vehicle's steering characteristics, such as self-centering and stability. The design and condition of the kääntöakseliin directly impact the vehicle's maneuverability, tire wear, and overall handling. Wear or damage to the kingpin or its bushings can lead to imprecise steering, increased play in the steering wheel, and potential safety hazards. Regular inspection and maintenance of the kääntöakseliin are therefore essential for the safe operation of vehicles that rely on this steering mechanism.