Name: 57mm Ringot Carbo Pulley
Brand: HARKEN
SKU: 2 601
Price: 76.16 EUR
Availability: InStock

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57mm Ringot Carbo Pulley - HARKEN

This Carbo Air block, designed to minimize friction, combines lightness, strength, reliability, and accessibility. It perfectly complements the renowned Black Magic blocks, while ensuring an exceptional working load for simple and secure adjustment.

Sheave Ø: 57 mm
Length: 132 mm
Weight: 96 g
Max rope Ø: 10 mm
Max working load: 359 kg

The 57 mm Carbo Fiddle Block stands out for its compactness and ability to withstand high loads while remaining incredibly lightweight. Experienced sailors will appreciate its efficiency and compatibility with systems requiring responsiveness and robustness. Its modern design optimizes effort management, a strong point compared to other heavier or less advanced blocks.

Carbo Air technology for ultra-smooth rolling, even under high tension
Highly resistant materials, guaranteeing durability and performance
Ergonomic design ensuring easy handling, even in difficult conditions
Perfect compatibility with large diameter ropes (up to 10 mm)
Impressive breaking load of 1079 kg, ensuring safety and reliability onboard

SKU: 2 601 | Barcode: 097653076698

€76¹⁶ EUR

Sheave diameter (mm) 57 mm
Sheave diameter (in) 2 1/4 in
Length (mm) 132 mm
Length (in) 5 3/16 in
Weight (g) 96 g
Weight (oz) 3.4 oz
Max rope diameter (mm) 10 mm
Max rope diameter (in) 3/8 in
Maximum working load (kg) 359 kg
Maximum working load (lb) 792 lb
Breaking load (lb) 2380 lb
Breaking load (kg) 1079 kg
Shackle pin diameter (mm) 5 mm
Shackle pin diameter (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.