
Ronstan Series 40 Ball Bearing Block - Single Upright Lead
Series 40 Ball Bearing Block - Single Upright LeadLead 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 ...
Size it to your vessel first
Run your loads through the Energy Planner to confirm this gear covers your daily draw — and see if you need more panels or battery.
Open the Energy Planner →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.
Applications:
- Typically used for halyards at the mast base.
Materials:
- Acetal ball bearings
- UV stabilized Acetal sheave
- Grade 316 stainless steel load housing
Good to know
- Genuine Ronstan product from an authorized dealer.
- Ships from US distribution.
- Questions about fit or installation? Contact us before you order.
What's in the box
No reviews yet
Be the first to review the Ronstan Series 40 Ball Bearing Block - Single U.... Bought one? We'd love to hear how it's working aboard.
Share your experience