
Light-Duty / Single Ball Bearing Black Polyurethane (PU) Flat Free Tire Caster Wheel. Eco-friendly PU Material: Constructed from new-generation high-molecular polyurethane for superior wear resistance. Enhanced Structural Rigidity: Features a lock-style wheel core design for improved shock absorption and cushioning. Smooth Rotation: Equipped with a single ball bearing for effortless rotation and extended service life. High Load Capacity: Maximum load capacity of 45kg suitable for light-duty applications. Integrated Brake System: Comes with a built-in brake for secure locking and safety. ISO9001 Certified Quality: Strict quality control system with rigorous inspection of all raw materials. Electrophoresis Treatment: Surface treated with electrophoresis for durability and corrosion resistance. Compact Design: 2-inch diameter (50mm) and 25mm thickness for versatile installation.