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Caster angle and trail both influence the steering, albeit in different ways: caster tends to add damping, while trail adds "feel" and returnability. The caster wheel on shopping carts are an extreme case – the system is undamped but stable, as the wheel oscillates around the "correct" path. The construction has relatively high trail, but no ...
A swing axle is a simple type of independent suspension designed and patented by Edmund Rumpler in 1903 for the rear axle of rear wheel drive vehicles. This was a revolutionary invention in automotive suspension, allowing driven (powered) wheels to follow uneven road surfaces independently, thus enabling the vehicle's wheels to maintain better ...
However, the larger the diameter of a caster wheel, the higher the caster support arm must be. Either the base of a low-hanging object must be lifted higher above the wheels, or the casters must hang out to the sides straddling the low-hanging supported object. While rotating around the vertical shaft, swivel caster wheels sweep out a space.
Railroad car wheels affixed to a straight axle, limiting them to rotate in unison. This is called a wheelset. A Denney axle. An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. [1]
Caster; Roll center height at design load; Mechanical (or caster) trail; Anti-dive and anti-squat; Kingpin Inclination; Scrub radius; Spring and shock absorber motion ratios; The kinematics describe how important characteristics change as the suspension moves, typically in roll or steer. They include Bump Steer; Roll Steer; Tractive Force Steer ...
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