Minimization of possible untoward effects on operator by installing VXB0045150PPF just ask your operator to push and pull, but not carry. The wheel diameter is 150mm or 5.906" inch in inches. The wheel has a width of 40mm=1.575" inch. The caster dimensions heightwise is 195mm/7.677" inch. Mounted via a Top Plate that has the size of 110mm x 100mm x 4mm fork:3.5mm and the holes distance of 85mm x 75mm. The ball bearing design will enable the Polypropylene tire to roll easily with a core made of Polypropylene. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 772 lb with a Fixed type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB0045150PPF in order to get one :).