Low cost solution to the heavy weight objects movement, Wheel casters like our VXB005125BAPU are used to roll your machine or equipment back and forth. Diameter size of the caster wheel has a metric standard 125mm which is equal to 4.921" inch with imperial units. The wheel has a width of 50mm=1.969" inch. Overall height of the wheel caster is 164mm = 6.457" inch. Mounted via a Top Plate that has the size of 115mm x 100mm and the holes distance of 72mm x 85mm. The Double ball beaing design will enable the Aluminum and Polyurethane tire to roll easily with a core made of Aluminum and Polyurethane. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 772 lb with a Swivel type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB005125BAPU in order to get one :).