Whatever you are building needed to be on wheels, here come the 4inch-Caster-003. Diameter of the caster wheel is a metric standard 100mm that is equal to 3.937" inch with imperial units. The wheel has a width of 50mm=1.969" inch. The overall height of the caster is 142mm or 5.591" inch. Top Plate is the method of installing the caster to your equipment, the dimensions are 100mm x 115mm with the holes distance of 75mm x 85mm. The Double ball beaing design will enable the Thermoplastic Rubber tire to roll easily with a core made of Thermoplastic Rubber. Bearing in mind that every caster wheel has the load capacity of 441 lb with a Fixed type. Last and not least the temperature range = -40 to 180 F. Buy the 4inch-Caster-003 now, just add the quantity to basket and click on Checkout.