4" x 2" Cast Iron Wheel Kingpinless Rigid Caster - 900 Lbs Capacity wheel-caster Swivel Construction: Double Ball Raceway

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

Link to Matching Rigid Brake Caster: P50052MSRBTLB

Swivel Construction: Double Ball Raceway - Kingpin (w/ Dust Cover)

Swivel Radius: 6-1/4"

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

4" x 2" Cast Iron Wheel Kingpinless Rigid Caster - 900 Lbs Capacity wheel-caster Swivel Construction: Double Ball Raceway4" 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.