This 100×55 red polyurethane wheel with a cast iron core and extra heavy-duty swivel castor is built for maximum maneuverability without sacrificing strength. The swivel design offers smooth 360-degree rotation, making it easy to navigate tight industrial spaces under heavy loads. A tough polyurethane tread absorbs shock and resists wear, while the solid cast iron core provides exceptional durability and load-bearing capacity. Equipped with a thrust bearing, this wheel ensures smooth rotation under heavy stress, offering enhanced performance. Ideal for factories, warehouses, and manufacturing floors, this castor delivers reliable, high-performance movement where it matters most.