ID
1360723
$ 64.76
1-2 weeks delivery time
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The Barton N13531 is a Size 3 triple swivel block with integrated becket and cam cleat, featuring three 45 mm ball bearing sheaves for ropes up to 10 mm. Weighing 280 g, it is designed for smooth, low-friction operation with secure rope locking and automatic alignment under load in high-efficiency multi-purchase systems. With a safe working load of 400 kg and break load of 800 kg, it is ideal for mainsheet, vang, and advanced trimming systems.
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Barton N13531 - Triple Swivel Block with Becket and Cam Size 3 45mm – Ball Bearing, 3x Ø45mm Sheaves, Max Rope 10mm
The Barton N13531 Triple Swivel Block with Becket and Cam is part of the Size 3 (45 mm) range and features three ball bearing sheaves for smooth, low-friction performance. The integrated cam cleat enables quick and secure rope locking, while the becket allows rope termination in compact multi-purchase systems.
The swivel attachment ensures automatic alignment under load, improving efficiency and reducing line wear. The triple sheave configuration provides maximum load distribution and increased mechanical advantage in complex rigging systems. The Size 3 range incorporates modern construction with stainless steel frames and advanced materials, including 30% glass fibre reinforced nylon cheeks and acetal sheaves. The ball bearing system is ideal for dynamic applications requiring frequent adjustment and precise control.
Key Features
- Triple sheave block with swivel, becket and cam cleat
- Ball bearing system for smooth, low-friction operation
- Integrated cam cleat for fast and secure line locking
- Becket for rope termination in purchase systems
- Swivel head for automatic alignment under load
Technical Specifications
Part Number N13531 Block Type Triple Swivel Block with Becket and Cam Size Size 3 (45 mm) Sheave Diameter 3 × 45 mm x 13 mm (1 3/4" x 33/64") Bearing Type Ball Bearing Number of Sheaves Triple Max Rope Diameter 10 mm (3/8") Safe Working Load (SWL) 400 kg (880 lbs) Break Load 800 kg (1760 lbs) Max Rolling Load 270 kg (595 lbs) Weight 280 g Dimensions 115 × 71 × 78 mm Materials Glass fibre reinforced nylon cheeks, acetal sheaves, 316 stainless steel fittings, Delrin ball bearings
Applications
- Mainsheet and trimming systems
- Control lines requiring quick adjustment and locking
- Vang and kicker systems
- High-ratio multi-purchase systems
The Barton N13531 delivers smooth and efficient performance, combining low friction, secure locking, and maximum mechanical advantage for demanding sailing applications.
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