Mounting VXB005150WC is the economoical solution of building project to move around by pushing or pulling. Spinning on wheel that has 150mm diameter/5.906" inch. Sizes of the caster wheel is 50mm (1.969" inch). The height of the wheel caster is 190mm = 7.480" inch. Mounted via a Top Plate that has a size of 115mm x 100mm x 5.5mm and the holes distance of 72mm x 85mm. The weehl core material is Cast Iron and has a Cast Iron tire with a low friction Roller bearing. 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 Swivel type. The Temperature range is -40 to 180 F. FYI, you will need to buy the VXB005150WC in order to get one :).