Mounting VXB005C200BAPU is the economoical solution of building project to move around by pushing or pulling. Dia. Measured of the caster wheel in metric standard 200mm which is equal to 7.874" inch with imperial units. Sizes of the caster wheel is 50mm (1.969" inch). The caster dimensions heightwise is 250mm/9.843" inch. Top Plate is the method of installing the caster to your equipment, dimensions are 115mm x 100mm x 6mm with the holes distance of 72mm x 85mm. The Double ball beaing design will enable the Aluminium and Polyurethane tire to roll easily with a core made of Aluminium and Polyurethane. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 1543 lb with a Swivel type. The caster wheel temperature range = -40 to 180 F. FYI, you will need to buy the VXB005C200BAPU in order to get one :).