Name: Carbo 57mm violin pulley with ratchet and cleat
Brand: HARKEN
SKU: 2 676
Price: 209.90 EUR
Availability: InStock

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Carbo 57mm violin pulley with ratchet and cleat

More details

Designed to hold ropes under load while ensuring a perfect balance between holding power and controlled release. Ideal for demanding cruisers and skippers seeking reliability and efficiency on board.

Sheave Ø: 57 mm (2 1/4 in)
Overall length: 143 mm (5 5/8 in)
Weight: 121 g (4.3 oz)
Maximum rope Ø: 10 mm (3/8 in)
Maximum working load: 359 kg (792 lb)
Breaking load: 1080 kg (2380 lb)
Shackle pin Ø: 5 mm (3/16 in)
Holding power: 10:1

It stands out with an exceptional weight-to-power ratio and a unique ability to offer control and safety during maneuvers under load. Thanks to its high-tech materials and optimized design, it guarantees optimal rope retention, while allowing for smooth and precise release.

Lightweight Carbo composite structure for easy handling and increased durability
High-performance ratchet ensuring a 10-fold increase in holding effort while limiting fatigue
Integrated cam cleat for smooth and safe navigation
Compatibility with ropes up to 10 mm in diameter
Optimal load resistance for light sailing or extreme conditions

With Harken's Carbo 57mm Fiddle Ratchet with Swivel/Cam Cleat Block, you benefit from the excellence of modern marine hardware, whether in sport cruising or competition.

SKU: 2 676 | Barcode: 097653238249

€209⁹⁰ EUR €257⁶⁴

Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Length (mm) 143 mm
Length (in) 5 5/8 in
Weight (g) 121 g
Weight (oz) 4.3 oz
Max. rope Ø (mm) 10 mm
Max. rope Ø (in) 3/8 in
Max. working load (kg) 359 kg
Max. working load (lb) 792 lb
Breaking load (lb) 2380 lb
Breaking load (kg) 1080 kg
Shackle Ø (mm) 5 mm
Shackle Ø (in) 3/16 in
Holding power 10:1

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.