Mounting VXB005200HPUF is the economoical solution of building project to move around by pushing or pulling. Spinning on wheel that has 200mm diameter/7.874" inch. Sizes of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end is 240mm = 9.449" inch. This wheel mounting is Top Plate with the dimensions of 100mm x 115mm and holes distance of 75mm x 85mm. The Double ball beaing design will enable the Polyurethane tire to roll easily with a core made of Polyurethane. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 661 lb with a Fixed type. The Temperature range is -40 to 180 F. FYI, you will need to buy the VXB005200HPUF in order to get one :).