Introducing the Heavy-duty Polyurethane Caster with Cast Steel Rim Wheel, a top-notch product designed for various applications. The wheel is made of Polyurethane molded on an iron casting rim, ensuring durability and strength. With a wheel diameter ranging from 4 to 8 inches, it can easily handle a loading capacity of 700lbs to 800lbs. Choose from different caster types, including Swivel Caster, Swivel Caster with Brake, and Rigid, based on your specific needs. This caster is perfect for Industrial Machinery, Warehouse and Logistics, Material Handling, and Heavy-Duty Equipment. Trust this caster to provide smooth and efficient movement in any heavy-duty environment.