Hamilton Standard Duty Kingpinless Swivel Caster with 4" x 2" UltraGlide Polyurethane on Aluminum Core Twin Wheel with 1/2" Sealed Precision Ball Bearings

5-5/8" mounting height

4" x 4-1/2" top plate

3" x 3" slotted to 2-5/8" x 3-5/8" bolt hole pattern

10-pound shipping weight

In stock for shipment within 24 to 48 hours

This unique polyurethane on aluminum wheels offers both ergonomic and economic advantages over standard polyurethane wheels. Two independent swivel surfaces roll on a common axle. The result is reduced rolling resistance, reduced initial start forces, and extended swivel caster life. In addition, the use of these wheels eliminates the need for costlier dual-wheel casters.