![Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/600x600/products/21080/21780/70786XL__85735.1530003151.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]")
![Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/1280x1280/products/21080/21780/70786XL__85735.1530003151.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]")
Product Overview
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
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