Ronstan Series 30 Utility Ball Bearing Block - Stand-up, Loop Top

Series 30 Utility Ball Bearing Block - Stand-up, Loop TopFeatures: 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 Priduct 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.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