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Tag: Kingpinless Caster
Easy swivel casters, unlike rigid casters, which travel in a straight line, have an additional swivel joint above the fork, allowing the fork to rotate 360°. This makes it easy to move the wheel in any direction without changing its orientation. How well these casters perform depends on a few things. The first is swivel lead. This is the distance from the vertical centerline of the caster swivel section to the vertical centerline of the wheel. By extending or lengthening the lead, a loaded cart is easier to turn as it requires less force to get moving. However, increasing the lead on an industrial caster also leads to a larger turning radius.
Ergonomic casters create less friction with the ground. This benefit can significantly reduce the force exerted to move and turn a cart or dollie. Easier movement results in reduced risk of injury and the associated costs and potentially increased productivity. These benefits are realized with tapered treads, independently rotating wheels and round wheels. In addition, Swivel on swivel designs offer longer leads than conventional casters and reduce the force required to rotate the caster and start it rolling while reducing side-to-side shifting. Higher-profile wheels can also increase carrying capacity without changing wheel size.
The kingpinless caster has a swivel section with a simpler design that also provides some definitive reliability benefits. This component is constructed of a top plate with a forged inner race, an outer race to which the legs are attached, and ball bearings between the two pieces. Unlike its counterpart, which requires a bolt or lug (known as a kingpin) to join the swivel section and support the swiveling motion, this unique design completely eliminates the need for such added infrastructure. By having the kingpin removed, loads are distributed more evenly across the remaining components in the swivel section – enhancing its strength and making it immune to deformation, which could shear or snap the kingpin relative to the exertion of certain types of forces.
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