Heavy weight capability and Durability made the wheel casters like the VXB005C125BAPUB1 a must use, get your do it yourself object move around. Diameter size of the caster wheel has a metric standard 125mm which is equal to 4.921" inch with imperial units. The thickness of the wheel is 50mm or 1.969" inch. Overall height of the wheel caster is 175mm = 6.890" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 115mm x 100mm x 6mm and holes distance of 72mm x 85mm. The weehl core material is Aluminium and Polyurethane and has a Aluminium and Polyurethane tire with a low friction Double ball beaing. Bearing in mind that every caster wheel has the load capacity of 926 lb with a Swivel and Center Brake type. The caster temperature range = -40 to 180 F. Buy our VXB005C125BAPUB1, we wish all the best.