Double Precision Ball Bearings feature a sealed, hardened inner and outer raceway, and hardened steel balls, press-fitted into the hub for high-load and higher speed capabilities heavy duty 4 inch non marking, non marring, blue solid Heavy Duty Casters Imeing 4 Inch Caster Wheels Set Of 4 1500lbs Heavy Duty Industrial Casters With Brakes Dual Heavy Duty Caster Wheels Solid Polyurethane Wheels, resistant to most chemicals, oils, acids, greases and other icky stuff. No tread separation, rusting, water absorption or floor-marking, Excellent for wash-down situations or applications in or around a lot of water Solid Polyurethane Wheels, resistant to most chemicals, oils, acids, greases and other icky stuff. Bearing Size: ¾"Precision Ball Bearing, Screw length 3.38". · Weight capacity ranges : 4"wheel Weight capacity ranges : 4wheel: 750 lbs., 5wheel: 800 lbs., 6wheel: 900lbs., 8wheel: 1100lbs.
