Utilizing VXB007050F makes it feasible to pull and push items instead of transport The wheel diameter is 50mm or 1.969" inch in inches. The wheel has a width of 22mm=.866" inch. The Caster with the wheel from end to end is 65mm = 2.559" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 58mm x 48mm with the holes distance of 46mm x 35mm. Low drag was achieved by a Rubber core on a Rubber tire spinning freely with a Delrin bearing. Each caster will carry the load of 55 lb and is Fixed type. The caster temperature range = -40 to 180 F. Buy our VXB007050F, we wish all the best.