Efficient VXB005C125CPUF makes it feasible to pull and push items instead of transport Wheel dia. is 125mm or 4.921" inch in inches. The wheel has a width of 50mm=1.969" inch. The height of the wheel caster is 175mm = 6.890" inch. This wheel mounting is Top Plate with the dimensions of 115mm x 100mm x 6mm and holes distance of 72mm x 85mm. The Roller bearing design will enable the Cast Iron and Polyurethane tire to roll easily with a core made of Cast Iron and Polyurethane. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 838 lb with a Fixed type. The caster wheel temperature range = -40 to 180 F. FYI, you will need to buy the VXB005C125CPUF in order to get one :).