Polyurethane Caster Wheels Heavy Duty can be availed in 75 mm, 100 mm, 125 mm, 150 mm and 200 mm dimension based options. Tread width of these wheels ranges between 45 mm to 68 mm and their loading height is between 94 to 240. Polyurethane Caster Wheels Heavy Duty have several advantages. Apart from their low noise functioning, these wheels are suitable for improving traction and grip of industrial trolleys and other equipments. Being rust protected, these remain functional for years after years. These PU wheels do not leave any scratch mark on floor surface and their load bearing performance deserves praise.