![Ronstan Series 20 Ball Bearing Block - Single, Loop Mount [RF20184]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/600x600/products/21083/21783/70789XL__97441.1530003156.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Single, Loop Mount [RF20184]")
![Ronstan Series 20 Ball Bearing Block - Single, Loop Mount [RF20184]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/1280x1280/products/21083/21783/70789XL__97441.1530003156.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Single, Loop Mount [RF20184]")
Product Overview
Series 20 Ball Bearing Block - Single, Loop Mount
Features:
- Low friction
- High static and dynamic load capacity
- Lightweight
- Single point mounting
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
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
![Ronstan Series 20 Ball Bearing Block - Single - Loop Top [RF20101]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/500x659/products/11154/11866/55132XL__52329.1529968297.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Single - Loop Top [RF20101]")
![Ronstan Series 20 Ball Bearing Block - Single - Loop Top Becket [RF20111]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/500x659/products/11155/11867/55133XL__47937.1529968299.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Single - Loop Top Becket [RF20111]")
![Ronstan Series 20 Ball Bearing Block - Single [RF20100]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/500x659/products/11153/11865/55131XL__62503.1529968295.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Single [RF20100]")
![Ronstan Series 20 Ball Bearing Block- Single, Stand-Up Loop Top [RF20141]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/500x659/products/30689/31411/70783XL__36425.1563914802.jpg?c=2 "Ronstan Series 20 Ball Bearing Block- Single, Stand-Up Loop Top [RF20141]")
![Ronstan Series 20 Ball Bearing Block - Single - Cheek Rivet Mount [RF20151A]](https://cdn11.bigcommerce.com/s-6g54mu6qkm/images/stencil/500x659/products/11157/11869/55136XL__36069.1529968303.jpg?c=2 "Ronstan Series 20 Ball Bearing Block - Single - Cheek Rivet Mount [RF20151A]")