This 12-inch by 4-inch 80 series extra heavy duty caster, is meticulously engineered to withstand the most abusive applications. The laser-cut formed legs provide additional strength, making them ideal for applications with side loading or skidding. Components are heat treated to achieve a hardness of 40 + 2 Rc. With exceptional strength and reliable construction, these fixed 80 Series Extra Heavy Duty Casters are the perfect choice for rugged industrial applications.
Paired with ductile iron wheels, they feature many of the same characteristics of cast iron however, ductile iron has higher tensile and yield strengths. Its greater strength and flexibility — and less brittle-like cast iron tendency — help ductile iron become a better alternative in shocking applications. Packed with our straight roller bearings, which are most effective for heavy loads, and are a great option when facing excessive thrust loading, these casters are rated for 7500 lbs.