Product Details
Series 40 Ball Bearing Block - Triple - Swivel Head
Features:
- Low friction Acetal or Torlon® bearing system
- Lightweight
- Cheek cut-outs for easy bearing maintenance
- Features a swivel shackle head for full 360° rotation
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:
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
Materials:
- Acetal ball bearings
- UV stabilised Acetal sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and UV resistant, fiber reinforced Nylon cheeks

![Lewmar 60mm HTX Block - Single [29196001] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94311XL_{width}x.jpg?v=1677108060)
![Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/74705XL_{width}x.jpg?v=1677098762)
![Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55253XL_{width}x.jpg?v=1677092525)
![Ronstan Series 40 All Purpose Block - Single - Stand Up [RF41140] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55205XL_{width}x.jpg?v=1677092494)
![Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Swivel Shackle Head [RF35100] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55173XL_{width}x.jpg?v=1677092478)
![Ronstan Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket Option [RF25109] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55155XL_{width}x.jpg?v=1677092467)
![Lewmar 72mm Synchro Block - Single [29927201BK] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94303XL_{width}x.jpg?v=1677108057)
