Description
Series 20 Ball Bearing Block – Triple – 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.:400kg(880lbs)
B. L.:850kg(1,870lbs)
Weight:62g(2.2oz)
![Harken 25mm Wire Block w/Shackle [300]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-25mm-wire-block-w-shackle-300.webp)
![Harken 40mm Carbo Air Block w/Swivel [2636]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-40mm-carbo-air-block-w-swivel-2636.webp)
![Ronstan Series 40 All Purpose Block - Single Upright Lead [RF41171]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/ronstan-series-40-all-purpose-block-single-upright-lead-rf41171.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 29mm Triple Carbo Air Block w/Swivel [344]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-29mm-triple-carbo-air-block-w-swivel-344.webp)
![Harken 57mm Carbo Air Fiddle Block w/SwivelBecket [2622]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-57mm-carbo-air-fiddle-block-w-swivelbecket-2622.webp)
![Harken 45mm Double Element Block w/Swivel [6238]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/harken-45mm-double-element-block-w-swivel-6238.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)