The 100mm Polyurethane Tyred Wheel Castor  is part of our extensive range of heavy industrial castors. The wheel runs on Roller Bearings and the wheels diameter is 100mm (4″). This heavy duty castor has a load capacity of 250kg. Swivel frame castors such as this one allow full swivel rotation of the wheel. Polyurethane wheels are designed for durability, movability, shock absorbsion and long life. This castor is quite versatile however it is popular in environments where floor protection and noise reduction is important.