![Ronstan Series 20 Ball Bearing Block – Loop Top Linked [RF20284]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/ronstan-series-20-ball-bearing-block-loop-top-linked-rf20284.webp)
Description
Series 20 Ball Bearing Block – Loop Top LinkedFeatures:
- 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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