The Phenolic Resin Wheel has a thermoplastic polymer construction similar to Polyolefin. They are generally used as caster wheels on multi-wheeled hand trucks on carts and on pallet jacks as load bearing wheels. The ride on phenolic resin is not as s mooth as other wheels due to the rigid plastic coating nor is it as quite as maneuverable. However this is an extremely rigid and durable wheel with the highest maximum load capacity ranging between 1000 and 1200 pounds. For the highest capacity whee l available order the Phenolic Resin Wheel today