This Heavy Duty Rubber Swivel Castor has a 420mm diameter and has a 650kg load capacity. These swivel castors are made of a zinc plated welded housing which ensures the castors is robust enough and suitable for a variety of environments. These castors have a pneumatic rubber wheel, are suitable for heavy duty baggage trolleys, runway equipment and general heavy duty purposes. These castors have a durable welded steel construction. The heavy duty pneumatic rubber wheel is steel wire reinforced, making it not only smooth to manoeuvre but extremely hardwearing for rugged environments.