Moves large items quicker using the VXB007040. The wheel diameter is 40mm or 1.575" inch in inches. The wheel has a width of 17mm=.669" inch. Overall height of the wheel caster is 54mm = 2.126" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 45mm x 40mm and holes distance of 35mm x 28.5mm. 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 44 lb and is Swivel type. The caster temperature range = -40 to 180 F. Buy our VXB007040, we wish all the best.