Name: 40mm Carbo swivel pulley with cleat
Brand: HARKEN
SKU: 2 157
Price: 99.95 EUR
Availability: InStock

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40mm Carbo swivel pulley with cleat

More details

Specifically designed for dinghies, sport catamarans, and large keelboats, it offers easy installation thanks to its mounting hole spacing compatible with Classic models.

Sheave Ø: 40 mm
Overall length: 112 mm
Total weight: 157 g
Max rope Ø: 10 mm
Maximum working load: 91 kg
Breaking load: 430 kg

The Harken 40 mm Carbo Swivel Cleat Block features a lightweight yet very strong Carbo construction, with a remarkably low weight (157 g) while offering an impressive safe working load (91 kg in use, 430 kg breaking load). Its practical mounting system uses the same dimensions as the Classic versions, making the transition simple and quick for users wishing to upgrade their deck hardware without additional work.

Carbo composite construction for optimized strength-to-weight ratio
Reversible cam cleat for effective upward or downward locking, according to your needs
Versatile use: ideal for halyard adjustments on large keelboats and mainsheet under the boom on dinghies and sport catamarans
Universal compatibility thanks to the same hole spacing as the Classic range
Sliding and locking performance, even under high tension

Rely on reliability, lightness, and advanced technology with the Harken 40 mm Carbo Swivel Cleat Block.

SKU: 2 157 | Barcode: 097653269496

€99⁹⁵ EUR

Sheave diameter (mm) 40 mm
Sheave diameter (in) 1 9/16 in
Length (mm) 112 mm
Length (in) 4 1/2 in
Weight (g) 157 g
Weight (oz) 5.5 oz
Max. rope diameter (mm) 10 mm
Max. rope diameter (in) 3/8 in
Max. working load (kg) 91 kg
Max. working load (lb) 200 lb
Breaking load (kg) 430 kg
Breaking load (lb) 950 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.