Caster Wheel

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Casters are wheeled devices that attach to larger objects, allowing them to move easily. These special housings contain a wheel which helps install wheels on various objects. Casters can be found in numerous places such as office desks, shipyards, hospitals, and automotive factories. They come in different sizes, from small furniture casters to large industrial ones, and have individual load capacities ranging from 100 pounds (45 kg) to 100,000 pounds (45 t). The wheel materials vary, including cast iron, plastic, rubber, polyurethane, forged steel, stainless steel, and aluminum.