![Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]](http://www.shopmarshlainesy.com/cdn/shop/products/70786XL_{width}x.jpg?v=1576071302)
![Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]](http://www.shopmarshlainesy.com/cdn/shop/products/70786XL_580x.jpg?v=1576071302)
Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]
Series 20 Ball Bearing Block - Double, In-Line
Features:
- Low friction
- High static and dynamic load capacity
- Lightweight
Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.
Applications:
- Dinghy control lines
- Dinghy vangs
- Cunninghams
- Traveller controls
- Dinghy barber haulers
- Spinnaker pole launching systems
Materials:
- Stainless Steel ball bearings
- UV stabilized Acetal sheave
- Grade 316 Stainless Steel load strap and head fitting
- Impact and UV resistant, fiber reinforced Nylon cheeks