Mounting the 5inch-Lock-Swivel-Caster-028 Wheel Caster can make your life easier, push or pull your new project on wheels. This wheel caster has a wheel diameter of 125mm or 4.921" inch in inches. The thickness of the wheel is 50mm or 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. The caster core is made of Black Cast iron and has a Black Cast iron tire with a low friction Roller bearing. Bearing in mind that every caster wheel has the load capacity of 507 lb with a Swivel and Center Locking type. Temperature range = -40 to 180 F. Remember, you will have to buy the 5inch-Lock-Swivel-Caster-028 in order to have it :).