Whatever you are building needed to be on wheels, here come the 3inch-Caster-008. Diameter of the caster wheel is a metric standard 75mm that is equal to 2.953" inch with imperial units. The wheel has a width of 75mm=2.953" inch. The caster dimensions heightwise is 120mm/4.724" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 95mm x 95mm x 5mm and holes distance of 70mm x 70mm. The Ball bearing design will enable the aluminum alloy and Nylon tire to roll easily with a core made of aluminum alloy and Nylon. Here come the maximum load that should be applied on every wheel, remember to add safety factor, when calculating the load capacity 1653 lb with a type. Last and not least the temperature range = -40 to 180 F. Remember, you will have to buy the 3inch-Caster-008 in order to have it :).