Minimization of possible untoward effects on operator by installing VXB005C100BAPUB1 just ask your operator to push and pull, but not carry. The wheel diameter is 100mm or 3.937" inch in inches. The wheel has a width of 50mm=1.969" inch. Overall height of the wheel caster is 150mm = 5.906" inch. Mounted via a Top Plate that has the size of 115mm x 100mm x 6mm and the 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. 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 and Center Brake type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB005C100BAPUB1 in order to get one :).