SSEC63TRT Hamilton Super Endurance™ Kingpinless Swivel Caster with 6" x 3" Ultralast™ Premium Polyurethane (95A) on Cast Iron Wheel with 3/4" Precision Tapered Roller Bearings Caster Specs Product Finish Powder Coated Caster rigs are powder coated with Hamilton’s new Platinum Powder, a metallic HAA Polyester providing a premium look and excellent durability for both interior and exterior environments. Axle 3/4" diameter hex head with lock nut. Lubrication Fittings Ballcheck type in swivel assembly and in wheel hubs with tapered or straight roller bearings. Load Capacity (lbs.): 2600 Wheel Diameter: 6 Wheel Face: 3 Overall Height: 8 Bearing Type: Tapered Caster Rig Type: Kingpinless Wheel Type: Ultralast® Replacement Wheel: W630TRT3/4 Caster Color: Platinum Powder Wheel Specs Type: Ultralast® Material: Polyurethane Cushioning(Resilience): Medium Impact Resistance: Medium Moisture Resistanc