Utilizing VXB005C100BAPUF makes it feasible to pull and push items instead of transport And rolling on wheel that has 100mm diameter/3.937" inch. Dimensions of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end 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. Low drag was achieved by a Aluminium and Polyurethane core on a Aluminium and Polyurethane tire spinning freely with a Double ball beaing. Each caster will carry the load of 772 lb and is Fixed type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB005C100BAPUF in order to get one :).

4" Inch Heavy Duty Caster Wheel 772 pounds Fixed Aluminium and Polyurethane Top Plate

VXB005C100BAPUF