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 72mm Synchro Block - Single [29927201BK] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94303XL_{width}x.jpg?v=1677108057)
![Lewmar 72mm HTX Block - Single [29197201] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/94312XL_{width}x.jpg?v=1677108061)
![Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/55175XL_{width}x.jpg?v=1677092481)
![Barton Size 3 45mm Plain Bearing Pulley Block Single SwivelBecket [N03131]](http://roughseasmarine.com/cdn/shop/files/111836XL_{width}x.jpg?v=1765505057)
![Barton Size 1 30mm Plain Bearing Pulley Block Single SwivelBecket [N01131]](http://roughseasmarine.com/cdn/shop/files/111834XL_{width}x.jpg?v=1765505056)
![Barton Size 2 35mm Plain Bearing Pulley Block Double w/Swivel [N02230]](http://roughseasmarine.com/cdn/shop/files/111764XL_{width}x.jpg?v=1765472452)
![Barton Size 2 35mm Plain Bearing Pulley Block Single SwivelBecket [N02131]](http://roughseasmarine.com/cdn/shop/files/111835XL_{width}x.jpg?v=1765505057)
