Polyurethane Beach Wheels Products DescriptionIn order to reduce the whole Wheel weight and keep the high loading capacity,Website:http://www.dc-casters.com, DC Casters already own the Polyurethane Beach Wheels. The mode which using Plastic Core as main materials is widely used in the cooler boxes, umbrellas, beach sports equipment etc. Besides using beach equipments, our polyurethane wheels also apply in medium duty and light duty equipments, logistic equipments, supermarket and etc. Steel Grade: Q235Surface treatment: GalvanizedSteel Thickness:5.5mm 6.0mmInstallation Diagrams:115mmx100mmBearing: Double BearingWHEEL Materials: PUMode: Rigid, Swivel, BrakeSpecification:Wheel MaterialsWheel Dia.(Inch)Wheel Width(MM)Overall Height(MM)BearingLoading Capacity(KGS)PU4"50137Double Bearing280PU5"50158Double Bearing280PU6"50186Double Bearing300PU8"50230Double Bearing300