Molded on polyurethane wheels with a non-marking polyurethane tread that is chemically bonded to a aluminum core. Polyurethane wheels resist flat spots on the tread from long periods of standing. A light weight and easy rolling floor protective wheel that is resistant to oil, grease, water, and many solvents. Series 30 casters use tough bright zinc plated components such as heat treated double ball bearing raceways, 5/8" bolted king pin, 1/2" axle bolt, and 1/4" cold forged steel top plate and fork construction. Wheel tread hardness of 90-95 Shore (A) Durometer. For more caster options, including bearings and top plates, please call our sales team in West Reading, PA, at 1-800-215-8220.
