Spring Loaded Casters Products DescriptionProuducts Name: Spring Loaded CastersMaterials: Polyurethane (PU)    Install Diagrams:160x115mmModel: Iron Core Casters,Website:http://www.dc-casters.com, Plastic Core CastersFrame Thickness:6mm and upDC CASTERS spring loaded casters are equipped by Transverse Spring , now is widely applied in handling equipments, warehousing and logistic, school, hospital, machine manufacturing, equipments manufacturing, food processing and manufacturing, transportation of precision instruments.Specification:Wheel MaterialsWheel Dia.(Inch)Wheel Width(MM)Overall Height(MM)BearingLoading Capacity(KGS)Iron corePU6"48208Double Bearing4008"48248Double Bearing420Plastic CorePU6"48208Double Bearing4008"48248Double Bearing420