Low cost solution to the heavy weight objects movement, Wheel casters like our VXB0045125PU are used to roll your machine or equipment back and forth. The wheel diameter is 125mm or 4.921" inch in inches. The thickness of the wheel is 40mm or 1.575" inch. Overall height of the wheel caster is 165mm = 6.496" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 110mm x 100mm x 4mm fork:3.5mm and holes distance of 85mm x 75mm. Low drag was achieved by a Polyurethane and Polypropylene core on a Polyurethane and Polypropylene tire spinning freely with a ball bearing. Bearing in mind that every caster wheel has the load capacity of 661 lb with a Swivel type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB0045125PU in order to get one :).