4" x 2" Cast Iron Wheel Kingpinless Rigid Caster - 900 Lbs Capacity wheel-caster Ductile steel wheels are the

Ductile steel wheels are the next level up in capacity and durability from cast iron wheels

Swivel Construction: Double Ball Raceway - 5/8" Kingpin

Wheel Type: Ductile Steel Wheel Durometer:Rockwell 75B Overall Height:7-1/2" Swivel Radius:4-9/16"

8" x 3" Ductile Steel Wheel Swivel Caster - Part# P7108301111

5" x 2" Cast Iron V-Groove Wheel Swivel Caster - Part # 146VIRB520S

4" x 2" Cast Iron Wheel Kingpinless Rigid Caster - 900 Lbs Capacity wheel-caster Ductile steel wheels are the4" x 2" Cast Iron Wheel Kingpinless Rigid Caster Part # P50042CIRB Cast iron is the industry standard metal caster wheel used across a wide range of heavy duty applications. This wheel differs from traditional cast iron designs because it is classified as semi steel. With reduced carbon content & additional steel blended into the casting, it delivers improved capacities, strength, durability & impact resistance compared to standard cast iron wheels.