Wheel RIM : Black polypropylene copolymer Tyre : Solid, black standard rubber with a trapezoidal profile Hub : Symmetrical with bore or roller bearing Applications : Mobile equipment and apparatus. Silent materials handling operations on uneven surfaces. Excellent resistance to wear. Code Diameter Bearing Charge 5.080.1200 80 Smooth boring 80 5.100.1210 100 Steel roller bearing 100