Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171]
Series 40 Ball Bearing Block - Single Upright Lead
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal 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.
- Typically used for halyards at the mast base.
- Acetal ball bearings
- UV stabilized Acetal sheave
- Grade 316 stainless steel load housing