Low profile and heavy duty up to 1795 lbs, ideal for manufacturing equipment Sealed ball bearing swivel assembly provides smooth and long term service Hexavalent chromium free. Using trivalent chromium for RoHS compliance Choose wheel type from Phenolic, Reinforced Nylon, MC nylon or Electro - conductive MC Nylon All wheel equiped with heavy duty ball bearingBearing in wheels: With Bearing Body Mounting Plate: Clear Zinc Chromate (Trivalent Chromium) Body Mounting Plate: Steel Box (pcs): 12 Carton (pcs): 120 Collection: UHG Load Capacity: 1122 lbs Swivel Radius: 57 Weight (g): 1540 Wheel: Black Wheel: Phenolic Resin