Low cost solution to the heavy weight objects movement, Wheel casters like our VXB005125BCB1 are used to roll your machine or equipment back and forth. Diameter size of the caster wheel has a metric standard 125mm which is equal to 4.921" inch with imperial units. Dimensions of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end is 167mm = 6.575" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 100mm x 115mm and holes distance of 75mm x 85mm. Low drag was achieved by a Black Cast iron core on a Black Cast iron tire spinning freely with a Roller bearing. Bearing in mind that every caster wheel has the load capacity of 507 lb with a Swivel and Center Brake type. Environment temperature range is -40 to 180 F. Very important notice, you need to buy the VXB005125BCB1 in order to get one :).