Mounting VXB009125BCPUF is the economoical solution of building project to move around by pushing or pulling. Wheel dia. is 125mm or 4.921" inch in inches. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 195mm = 7.677" inch. Mounted via a Top Plate that has a size of 138mm x 110mm x 10mm and the holes distance of 110mm x 75mm. Low drag was achieved by a Cast iron polyurethane core on a Cast iron polyurethane tire spinning freely with a Precision double ball bearing. Each caster wheel will carry the load of 882 lb and is Fixed type. The Temperature range is -40 to 180 F. Buy the VXB009125BCPUF now, we ship on the same day.