Name: Carbo violin pulley, 57 mm row
Brand: HARKEN
SKU: 2 622
Price: 85.08 EUR
Availability: InStock

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Carbo violin pulley, 57 mm row

More details

This block features low-friction technology, ideal for safe and precise adjustment.

Sheave diameter: 57 mm
Length: 175 mm
Weight: 113 g
Max rope diameter: 10 mm
Maximum working load: 359 kg

The Carbo fiddle block rgt. 57 mm clearly stands out for its ability to handle high working loads, while maintaining a compact profile and light weight. Its composite and stainless steel structure offers an ideal balance between performance, safety, and durability.

Carbo Air technology for a low coefficient of friction
High-strength materials for increased robustness
Compact and lightweight for easy installation
High load capacity, suitable for high-performance sailboats
Easy to adjust and handle, even under high tension

SKU: 2 622 | Barcode: 097653100669

€85⁰⁸ EUR

Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Length (mm) 175 mm
Length (in) 6 7/8 in
Weight (g) 113 g
Weight (oz) 4 oz
Max. rope Ø (mm) 10 mm
Max. rope Ø (in) 3/8 in
Maximum working load (kg) 359 kg
Maximum working load (lb) 792 lb
Breaking load (lb) 2380 lb
Breaking load (kg) 1080 kg
Shackle pin Ø (mm) 5 mm
Shackle pin Ø (in) 3/16 in

Our tips for choosing

Workload and breaking load

Choose your pulley based on the workload it will have to handle and the desired gear ratio. The orders of magnitude vary depending on the support: 400 to 500kg for the mainsheet or cunningham of an 18-foot catamaran, 100 to 200kg for the mainsheet or downhaul of a 420 dinghy for example.

Coefficient of friction

Modern ball bearing pulleys offer a much lower coefficient of friction than those without balls and are recommended for maneuvers that require constant adjustment (mainsail sheet, downhaul, cunningham, spinnaker essentially).

Restraining force

For the mainsheet which is not always fully tightened, or even never on some boats which require constant adjustment (29er, 49er, Class A,...) as for the spinnaker sheet, favor automatic or non-automatic winch pulleys, which considerably save muscles and gloves thanks to a retention that can go up to 70% of the workload.

Sheave diameter

Choose the diameter of the pulley according to the diameter of the rope it will guide. For example, depending on the support and workload, a 40 or 57 sheave is very suitable for a 6 to 10mm mainsail sheet. For Cunningham or downhaul type maneuvers, 16 or 22 sheaves are suitable.

Material

Stainless steel, carbon, composite, it's essentially a matter of weight, with an impact on the price: it all depends on the importance you attach to it. If the pulley is to guide a cable, use aluminum sheaves which will be much more resistant than composite materials.