ID
1360913
$ 148.44
1-2 weeks delivery time
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The Barton N17220 is a Size 7 double reverse shackle block with two 70 mm ball bearing sheaves, designed for ropes up to 14 mm. Weighing 463 g, it delivers smooth low-friction performance with a safe working load of 1250 kg, break load of 2500 kg, and maximum rolling load of 875 kg. The reverse shackle configuration allows flexible alignment at 90°, making it ideal for high-load dynamic systems on larger cruising and racing yachts.
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Barton N17220 - Double Reverse Shackle Block Size 7 70mm – Ball Bearing, 2x Ø70mm Sheaves, Max Rope 14mm
The Barton N17220 Double Reverse Shackle Block is part of the Size 7 (70 mm) high load cruising range, designed for superior strength and high-performance sailing systems. It features two ball bearing sheaves that provide smooth and efficient operation under dynamic load conditions.
Constructed with glass fibre reinforced nylon side plates and an internal 316 stainless steel frame, this block is through-bolted and riveted for maximum durability. The reverse shackle attachment allows the block to be fixed while enabling 90° alignment flexibility, making it highly adaptable for complex rigging configurations.
Key Features
- Double sheave block with reverse shackle attachment
- Ball bearing system for low-friction, high-efficiency performance
- Allows fixed mounting with 90° orientation flexibility
- Heavy-duty construction with stainless steel internal frame
- Designed for high load dynamic rigging systems
Technical Specifications
Part Number N17220 Block Type Double Reverse Shackle Size Size 7 (70 mm) Sheave Diameter 70 mm (2 13/16") Sheave Size 72 × 20 mm (2 53/64" × 3/4") Bearing Type Ball Bearing Number of Sheaves Double Max Rope Diameter 14 mm (9/16") Safe Working Load (SWL) 1250 kg (2750 lbs) Break Load 2500 kg (5500 lbs) Max Rolling Load 875 kg (1929 lbs) Weight 463 g Dimensions 165 × 68 × 77 mm Materials Glass fibre reinforced nylon cheeks, Acetal sheaves, 316 stainless steel frame
Applications
- Mainsheet and traveller systems
- High load purchase systems
- Complex rigging requiring directional flexibility
- Cruising and racing yacht setups
The Barton Size 7 ball bearing double blocks are engineered for maximum efficiency and strength, delivering smooth handling and reliable performance in demanding marine environments.
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