Little or minimum effort can be possible on your operator by installing VXB005150BAPUB1 just ask your operator to push and pull, but not carry. Dia. Measured of the caster wheel in metric standard 150mm which is equal to 5.906" inch with imperial units. The thickness of the wheel is 50mm or 1.969" inch. The Caster with the wheel from end to end is 190mm = 7.480" inch. This wheel mounting is Top Plate with the dimensions of 115mm x 100mm and holes distance of 72mm x 85mm. The Double ball beaing design will enable the Aluminum and Polyurethane tire to roll easily with a core made of Aluminum and Polyurethane. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 882 lb with a Side Brake type. The Temperature range is -40 to 180 F. Buy the VXB005150BAPUB1 now, we ship on the same day.