Name: Carbo triple row pulley, 29mm
Brand: HARKEN
SKU: 347
Price: 149.56 EUR
Availability: InStock

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Carbo triple row pulley, 29mm - HARKEN

Designed to optimize the management of sheets and halyards on small to medium sailboats, it offers performance and reliability in all conditions.

Sheave Ø: 29 mm
Length: 85 mm
Weight: 133 g
Max rope Ø: 6 mm
Max working load: 408 kg

Ideal as a less expensive and lighter alternative to the Black Magic series, it maintains a very low wear rate while ensuring smooth and precise rope handling even under high tension.

Construction from innovative composite materials ensuring strength and lightness.
Low friction coefficient for quick and effortless adjustments.
Triple format facilitating the management of multiple halyards or sheets on the same base.
Impressive load capacity (408 kg working load) for a compact block.
Enhanced safety thanks to a flawless design, tested to withstand extreme conditions.

SKU: 347 | Barcode: 097653100522

€149⁵⁶ EUR

Sheave diameter (mm) 29 mm
Sheave diameter (in) 1 1/8 in
Length (mm) 85 mm
Length (in) 3 3/8 in
Weight (g) 133 g
Weight (oz) 4.7 oz
Max rope diameter (mm) 6 mm
Max rope diameter (in) 1/4 in
Maximum working load (kg) 408 kg
Maximum working load (lb) 900 lb
Breaking load (lb) 1800 lb
Breaking load (kg) 816 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.