The 57/58 Series is our most popular Heavy-Duty series of caster.
This caster is designed for maximum durability and features our extremely durable Kingpinless raceway.
Our Kingpinless raceway is integrated with a 3.00″ diameter precisely CNC machined single raceway of 1/2″ hardened ball bearings.
Constructed with 5/16″ thick top plate from hot forged ASTM1045 steel.
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