![Ronstan Series 20 Ball Bearing Block- Single, Stand-Up Loop Top [RF20141]](http://boatersemporium.com/cdn/shop/products/70783XL.jpg?v=1574653242&width=1000)
![Ronstan Series 20 Ball Bearing Block- Single, Stand-Up Loop Top [RF20141]](http://boatersemporium.com/cdn/shop/products/70783XL_1024x.jpg?v=1574653242)
Description
Series 20 Ball Bearing Block- Single, Stand-Up Loop Top
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
- Traveler 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
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