CR-X Mooring Swivel (TYPE SW6) The SW6 series represents GN Rope Fittings’ specialized engineering for critical mooring line rotational interfaces. These high-capacity swivels are DNV GL Type Approved (Standard OS E302) , confirming their suitability for permanent and temporary mooring systems in demanding offshore conditions. Engineered with a robust, heavy-duty body, they ensure maximum reliability for subsea anchoring infrastructure.