Korean Casters Products DescriptionKorean Casters is the we regular export to South Korea,Website:http://www.dc-casters.com, and are widely used in Mining, equipment producing, civil construction, agriculture and heavy industry equipment transportation, mechanical equipment transportation, sea port, storage and etc.Core of Korea Casters is used by Iron Or Plastic, the Obvious characteristics is the shape of wheel is round edge. Beautiful appearance with high loading capacity.Steel Grade: S235JR Surface treatment: ZINC CoatedSteel Thickness:6mmInstallation Diagrams:115mmx100mmBearing: Double BearingWHEEL Materials: PUMode: Rigid, Swivel, BrakeSpecification:Wheel MaterialsWheel Dia.(Inch)Thread Width(MM)Height(MM)BearingLoading Capacity(KGS)Polyurethane4"50137Double Bearing300Polyurethane5"50158Double Bearing300Polyurethane6"50186Double Bearing300Polyurethane8"50230Double Bearing350