ID
1360720
$ 145.80
1-2 weeks delivery time
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The Barton N03531 is a Size 3 triple swivel block with integrated becket and cam cleat, featuring three 45 mm plain bearing sheaves for ropes up to 10 mm. Weighing 267 g, it is designed for high-load multi-purchase systems requiring secure rope locking and automatic alignment under load. With a safe working load of 400 kg and break load of 800 kg, it delivers reliable performance in mainsheet, vang, and advanced control systems.
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Barton N03531 - Triple Swivel Block with Becket and Cam Size 3 45mm – Plain Bearing, 3x Ø45mm Sheaves, Max Rope 10mm
The Barton N03531 Triple Swivel Block with Becket and Cam is part of the Size 3 (45 mm) range and features three plain bearing sheaves for dependable load handling. 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. The Size 3 range incorporates modern construction with stainless steel frames and advanced materials, including 30% glass fibre reinforced nylon cheeks and acetal sheaves, ensuring high strength while maintaining low weight. The plain bearing system is well suited for higher static loads and continuous operation.
Key Features
- Triple sheave block with swivel, becket and cam cleat
- Plain bearing sheaves for reliable load handling
- 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 N03531 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 Plain 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) Weight 267 g Dimensions 115 × 71 × 78 mm Materials Glass fibre reinforced nylon cheeks, acetal sheaves, 316 stainless steel fittings, brass plain bearings
Applications
- Mainsheet and trimming systems
- Control lines requiring quick adjustment and locking
- Vang and kicker systems
- High-ratio multi-purchase systems
The Barton N03531 provides a powerful and efficient solution for maximum mechanical advantage, secure line locking, and precise control, ensuring reliable performance in demanding sailing applications.
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