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The steering kingpin is held in place by the forked ends of a beam axle on a Ford Model T. The kingpin (also king-pin, king pin and k pin) [1] [2] is the main pivot in the steering mechanism of a car or other vehicle. The term is also used to refer to part of a fifth wheel coupling apparatus for a semi and its trailer or other load.
With this suspension, the scrub radius is not adjustable. The greater the scrub radius (positive or negative), the greater the steering effort is. When the vehicle has been modified with offset wheels, larger tires, height adjustments and side to side camber differences, the scrub radius will be changed and the handling and stability of the ...
1908 Sizaire-Naudin Schematic of a later 'inverted' sliding pillar, as for the Morgan. A sliding pillar suspension is a form of independent front suspension for light cars. The stub axle and wheel assembly are attached to a vertical pillar or kingpin which slides up and down through a bush or bushes which are attached to the vehicle chassis, usually as part of transverse outrigger assemblies ...
A value of 50% would mean, that half of the weight transfer to the front wheels; during braking, it is being transmitted through front suspension linkage, and half is being transmitted through front suspension springs. For inboard brakes, the same procedure is followed, but using the wheel center instead of contact patch center.
The wheel and tire assembly attach to the hub or spindle of the knuckle where the tire/wheel rotates while being held in a stable plane of motion by the knuckle/suspension assembly. In the attached photograph of a double-wishbone suspension, the knuckle is shown attached to the upper control arm at the top and the lower control arm at the bottom.
In either case, the difference is that the single bottom wishbone is replaced by a pair of suspension links forming a trapezoidal four-bar linkage. This allows the kingpin to pivot about a pivot point nearer the center of the wheel's contact patch instead of the traditional pivot point at the ball joint of the bottom wishbone. [2]
Automotive suspension design is an aspect of automotive engineering, concerned with designing the suspension for cars and trucks. Suspension design for other vehicles is similar, though the process may not be as well established. The process entails Selecting appropriate vehicle level targets; Selecting a system architecture
A stub axle or stud axle is either one of two front axles in a rear-wheel drive vehicle, or one of the two rear axles in a front-wheel drive vehicle. In a rear-wheel drive vehicle this axle is capable of angular movement about the kingpin for steering the vehicle.