ID
1360873
$ 154
1-2 weeks delivery time
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The Barton N15331 is a Size 5 triple swivel block with becket and three 54 mm ball bearing sheaves, designed for ropes up to 12 mm. Weighing 371 g, it delivers smooth low-friction performance with a safe working load of 750 kg and break load of 1500 kg, making it ideal for dynamic high-load multi-purchase systems requiring rotation and secure rope termination.
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Barton N15331 – Triple Swivel Block with Becket Size 5 54mm, Ball Bearing, 3x Ø54mm Sheaves, Max Rope 12mm
The Barton N15331 Triple Swivel Block with Becket is part of the heavy-duty Size 5 (54 mm) range, engineered for high-performance sailing applications. Featuring three ball bearing sheaves, this block ensures smooth, low-friction operation, ideal for dynamic systems requiring frequent adjustment and efficient load transfer.
The swivel attachment allows full rotation under load, maintaining optimal alignment and reducing line twist, while the integrated becket provides a secure point for rope termination in multi-purchase systems. Constructed with marine-grade 316 stainless steel load components and reinforced moulded side plates, the block is through-bolted and riveted for maximum durability and strength.
Key Features
- Triple sheave block with swivel and integrated becket
- Ball bearing system for smooth, low-friction performance
- Provides maximum mechanical advantage in multi-purchase systems
- Free rotation under load for optimal alignment
- Integrated becket for rope termination
- Heavy-duty construction with stainless steel internal frame
- Through-bolted and riveted side plates for superior strength
- Weight – 371 g
Technical Specifications
Part Number N15331 Block Type Triple Swivel + Becket Size Size 5 (54 mm) Sheave Diameter 3 × 54 mm x 17 mm (2 1/8" x 5/8") Bearing Type Ball Bearing Number of Sheaves Triple Max Rope Diameter 12 mm (7/16") Safe Working Load (SWL) 750 kg (1650 lbs) Break Load 1500 kg (3300 lbs) Max Rolling Load 525 kg (1157 lbs) Weight 371 g Dimensions 150 × 83 × 58 mm
Applications
- High mechanical advantage multi-purchase systems with rope termination
- Mainsheet and traveller systems
- Dynamic control and trimming setups
- Cruising and racing yachts
- Applications requiring rotation and alignment under load
The Barton Size 4/5 block range is designed for small to medium cruising yachts up to 10 m, offering robust construction, 316 stainless steel load components, and reliable high-load performance. :contentReference[oaicite:0]{index=0}
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