Heavy Duty Caster Set 4in Green Polyurethane on Cast Iron Wheels, 4 Rigid, 4PK

This 4-piece Heavy Duty Caster Set with green polyurethane on cast iron wheels is engineered for strength, smooth mobility, and long-lasting performance in demanding work environments. Available in multiple set configurations-rigid, swivel, swivel with brake, or mixed combinations-these casters are suitable for a wide variety of equipment setups. Wheel sizes from 4in to 8in with a 2in tread width provide load capacities ranging from 700 lbs to 1,100 lbs per caster. The polyurethane tread on a cast iron core offers excellent durability, floor protection, and resistance to chemicals, oils, grease, and water. Cold-forged top plates, hardened raceways, and a double row ball bearing swivel raceway deliver superior strength and consistent operation under heavy loads. Zinc-plated components guard against corrosion, while Zerk fittings allow for easy lubrication and maintenance. Ideal for platform trucks, food service equipment, and large stock carts, these casters combine robust construction with dependable performance.