Description
Series 20 Ball Bearing Block – Double – 2-Axis Shackle Head
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
- Two-Way head can be fixed at 0° or 90°
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
Specifications:
Sheave Ø:20mm(3/4″)
Max. Rope Ø:6mm(1/4″)
PinØ:4mm(5/32″)
M.W.L.:350kg(770lbs)
B. L.:700kg(1,540lbs)
Weight:42g(1.5oz)
![Harken 45mm Triple Element Block w/Swivel [6240]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-45mm-triple-element-block-w-swivel-6240.webp)
![Harken 45mm Single Element Block w/SwivelBecket [6231]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-45mm-single-element-block-w-swivelbecket-6231.webp)
![Harken 45mm Triple Element Block w/ SwivelBecket [6241]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-45mm-triple-element-block-w-swivelbecket-6241.webp)
![Harken 57mm Carbo Block Flip Flop w/Cam [2143]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-57mm-carbo-block-flip-flop-w-cam-2143.webp)
![Harken 22mm Micro Block [224]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-22mm-micro-block-224.webp)
![Ronstan Series 40 All Purpose Block - Single Cheek [RF41811]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/ronstan-series-40-all-purpose-block-single-cheek-rf41811.webp)
![Harken 22mm Fiddle Micro Block w/V-Jam [244]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-22mm-fiddle-micro-block-w-v-jam-244.webp)