Name: Carbo triple pulley, 40mm row
Brand: HARKEN
Price: 262.13 EUR
Availability: InStock

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Carbo triple pulley, 40mm row - HARKEN

Harken Carbo triple pulley, 40mm row: Ultra-low friction & robust Carbo Air construction. Ideal solution for demanding sailboats.

More details

Ideal for demanding applications, this compact block incorporates all Carbo Air technology to ensure safe and effortless adjustment.

Sheave diameter: 40 mm
Overall length: 110 mm
Weight: 235 g
Shackle pin diameter: 5 mm
Maximum working load: 408 kg
Breaking load: 816 kg
Maximum rope diameter: 6 mm

The Carbo Air excels thanks to its innovative materials and optimized design to maximize safety and durability. It stands as a true benchmark against Harken's Black Magic range, while ensuring an affordable solution for all cruisers and racers.

Ultra-low friction, facilitating precise adjustment of your sheets or halyards, even under heavy loads.
Carbo composite body, ensuring an exceptional strength-to-weight ratio.
Very high working load (408 kg), ideal for controlling significant forces on deck.
Versatile use thanks to a maximum rope diameter of 6 mm and compatibility with most modern rigging systems.

SKU: 2 648 | Barcode: 097653084211

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€262¹³ EUR

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Sheave Ø (mm) 40 mm
Sheave Ø (in) 1 9/16 in
Length (mm) 110 mm
Length (in) 4 5/16 in
Weight (g) 235 g
Weight (oz) 8.3 oz
Shackle pin Ø (mm) 5 mm
Shackle pin Ø (in) 3/16 in
Max rope Ø (mm) 6 mm
Max rope Ø (in) 1/4 in
Maximum working load (kg) 408 kg
Maximum working load (lb) 900 lb
Breaking load (kg) 816 kg
Breaking load (lb) 1800 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.