NODUS Factory
Violin pulley | BF-D® Block-Friction BF 20-14
Violin pulley | BF-D® Block-Friction BF 20-14
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Nodusfactory's Block-Friction® FrD duralumin anodized pulley is a top-of-the-range product offering numerous advantages in terms of performance, durability and ease of use.
Exceptional strength-to-weight ratio (10 times lighter than a pulley), designed for high static loads.
Block-Friction® pulleys can be used for 3:1 or 4:1 downhaul or mainsail hoists, as well as for cunningham adjusters or sheet point hoists on larger boats.
Our violin pulleys are perfect for applications requiring low rope movement (speed) and low angle (the greater the deflection, the greater the friction).
Product Details
Violin pulley | BF-D® Block-Friction BF 14 -10
Description
The multiaxial 3D violin pulley allows perfect alignment of connections at different angles, with each friction ring adjustable and mobile.
+ Application
- For 3:1 or 4:1 downhaul or mainsail hoists, as well as for cunningham adjustment hoists or sheet point hoists on larger boats.
- Ideal for applications requiring low rope movement (speed) and low angle (the greater the deflection, the greater the friction).
- A 60° angle gives 100% of the load, a 180° angle 200% of the load.
- The textile connection allows the load to self-align, reducing fatigue.
+ Repairability
- Category 1 reparability
Data sheet
FRD low-friction ring, in hardened anodized Duralumin ¬ anthracite grey
- FrD10/FrD14 & FrD14/FrD20
- High tensile strength: 2200 MPa
- Fatigue strength: 10^7 cycles
- Abrasion resistance: 30% higher than titanium
- Corrosion resistance: 30-micron hard anodizing
100% Dyneema® ® textile® crimping between rings, core and sheath
- SK78 12 fx pre-stretched, sizing ¬ Light gray / black
- Block® ring, in soft TPE thermoplastic
Weight optimized for sail applications
30% lighter than stainless steel
