Moves large items quicker using the VXB013150WBCPUF. The wheel diameter is 150mm or 5.906" inch in inches. The thickness of the wheel is 50mm or 1.969" inch. The caster dimensions heightwise is 222mm/8.740" inch. Mounted via a Top Plate that has the size of 140mm x 108mm and the holes distance of 105mm x 75mm. Low drag was achieved by a Polyurethane and Cast iron core core on a Polyurethane and Cast iron core tire spinning freely with a Ball bearing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 661 lb with a Fixed type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB013150WBCPUF in order to get one :).