Wheel casters like the 8inch-Swivel-Caster-027 are used to roll your built machine or equipment back and forth. This caster is rolled on a wheel that has 200mm diameter/7.874" inch inches. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 240mm = 9.449" inch. Mounted via a Top Plate that has the size of 100mm x 115mm and the holes distance of 75mm x 85mm. The Double ball beaing design will enable the Polyvinyl Chloride tire to roll easily with a core made of Polyvinyl Chloride. Bearing in mind that every caster wheel has the load capacity of 661 lb with a Swivel type. Temperature range = -40 to 180 F. Enjoy our 8inch-Swivel-Caster-027, we wish all the best in your project.