Wheel casters like the 4inch-Swivel-Caster-027 are used to roll your built machine or equipment back and forth. This wheel caster has a wheel diameter of 100mm or 3.937" inch in inches. Dimensions of the caster wheel is 30mm (1.181" inch). The overall height of the caster is 130mm or 5.118" inch. Mounted via a Top Plate that has the size of 93mm x 62mm and the holes distance of 45mm x 72mm. Low drag was achieved by a Thermoplastic Rubber core on a Thermoplastic Rubber tire spinning freely with a Double ball bearing. Here come the maximum load that should be applied on every wheel, remember to add safety factor, when calculating the load capacity 198 lb with a Swivel type. Temperature range = -40 to 180 F. Buy the 4inch-Swivel-Caster-027 now, just add the quantity to basket and click on Checkout.