Name: Ringot 40mm Double Carbo Pulley
Brand: HARKEN
Price: 108.53 EUR
Availability: InStock

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Ringot 40mm Double Carbo Pulley - HARKEN

40mm double Carbo pulley with Ringot: Low friction & high load capacity.

More details

Designed for low friction, this block combines lightness, strength, and reliability to ensure smooth and safe maneuvers on all types of boats. It stands out for its exceptional performance and its ability to withstand significant loads while maintaining a compact size.

Overall length: 110 mm (4 5/16 in)
Sheave diameter: 40 mm (1 9/16 in)
Weight: 90 g (3.4 oz)
Maximum line diameter: 10 mm (3/8 in)
Maximum working load: 440 kg (970 lb)
Breaking load: 1080 kg (2380 lb)
Shackle diameter: 5 mm (3/16 in)

The Carbo 40 mm Double Fiddle Block with Becket stands out for having one of the highest load capacities in its category for such a small size. Its composite structure ensures optimal durability without increasing weight, unlike traditional metal blocks. This solution is part of Harken's Carbo Air range, perfectly complementing the famous Black Magic line by offering an often more affordable yet equally high-performing alternative.

Low-friction system for increased efficiency during quick adjustments, even under tension.
Compact and lightweight design, ideal for both performance sailboats and demanding cruising.
Tested reliability and robustness to meet the expectations of professional sailors and demanding amateurs.
Working and breaking loads significantly higher than the market average, synonymous with safety and longevity.
Optimal compatibility with a wide range of lines and installations thanks to its large sheave and shackle diameter.

SKU: 2 639 | Barcode: 097653077374

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€108⁵³ EUR

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Length (in) 4 5/16 in
Sheave Ø (mm) 40 mm
Sheave Ø (in) 1 9/16 in
Length (mm) 110 mm
Weight (g) 90 g
Weight (oz) 3.4 oz
Shackle Ø (mm) 5 mm
Shackle Ø (in) 3/16 in
Max. rope Ø (mm) 10 mm
Max. rope Ø (in) 3/8 in
Maximum working load (kg) 440 kg
Maximum working load (lb) 970 lb
Breaking load (kg) 1080 kg
Breaking load (lb) 2380 lb

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.