Series 30 Utility Bb Block- Single - Swivel Shackle

Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head. Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range.. High static and dynamic load capacity.. Light weight. Versatile head fittings Product Information:. Sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Can be fitted with a shackle in either of two planes to allow correct alignment of the block.. Applications: Primary lead blocks on dinghies and catamarans. Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves. Acetal ball bearings. Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks. Grade 316 stainless steel load straps and head fittings.