Caster Wheel, Mold-On Rubber Wheel, Roller Wheel Bearing

These wheels are compounded of top quality 70 durometer (± 5 Shore A) rubber, vulcanized to semi-steel centers. They combine resilience with total wearability, matching and sometimes surpassing synthetic rubbers in grease resistance. Hardened steel roller bearings have hardened steel outer races for longer wear. Wheel centers are semi-steel.