Heavy weight capability and Durability made the wheel casters like the VXB005C200BAPUB3 a must use, get your do it yourself object move around. The wheel diameter is 200mm or 7.874" inch in inches. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 250mm = 9.843" inch. Mounted via a Top Plate that has the size of 115mm x 100mm x 6mm and the holes distance of 72mm x 85mm. Low drag was achieved by a Aluminium and Polyurethane core on a Aluminium and Polyurethane tire spinning freely with a Double ball beaing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 1543 lb with a Swivel and Upper Brake type. The caster temperature range = -40 to 180 F. Buy our VXB005C200BAPUB3, we wish all the best.