This 200mm extra heavy duty lockable castors are made of a heavy duty pressed steel zinc plated, housing a 200mm ( 8) nylon wheel. This heavy duty 200mm lockable nylon castor wheel runs on ball journal bearings, making the heavier loads easier to move. Able to carry loads of 800kgs per braked castors. The foot operated wheel brake simultaneously brakes both the swivel castor head and the wheel. These castors are suitable for a range of heavy duty applications, combining 4 of these castors makes carrying loads of 2.4tonnes per castors set. Ideal for moving heavy equipment and machinery.