Low friction ring for 10mm line, bore dia 18mm, overall dia 33mm, weight 10.2gm and safe working load 2400kgs, the PTFE coating seals each unit creating an extremely low friction surface. Friction is only increased by 15% compared to a plain bearing block. Up to 250% stronger, constructed from HE30 marine grade aluminium and anodised to 40 microns. Up to a 90% reduction in weight SKU: R8340