This range features UV stabilised ACETAL (White) or NYLATRON (Black) sheaves. The products in this panel have SLEEVE BEARINGS, which have a high load capacity and are very rugged. All feature marine grade 316 frames/cheeks. • 29mm double block, loop head, 2 x tube rivert, becket • Ronstan part number: RF83 • Max work load: 450kg • Rope diameter: 8mm