Moves large items quicker using the VXB013125WBCPU. Diameter size of the caster wheel has a metric standard 125mm which is equal to 4.921" inch with imperial units. The wheel has a width of 50mm=1.969" inch. The caster dimensions heightwise is 210mm/8.268" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 140mm x 108mm with 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 617 lb with a Swivel type. Temperature range is -40 to 180 F. Buy our VXB013125WBCPU, we wish all the best.