Heavy duty 6 inch dual spring shock absorbing caster with red polyurethane iron core wheel and galvanized steel bracket. 400kg load capacity, 6203 bearing. Built for CNC routers, scissor lifts, compressors, heavy machinery. OEM/ODM available. 6 Inch KU Series Dual Spring Shock Absorbing Caster – Red Iron Core PU Wheel, Galvanized Steel Bracket, 400kg Load Capacity6" KU Dual Spring Caster | Red PU Iron Core | 400kg | Galvanized 6 inch dual spring caster, KU series caster 6