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29mm Ringot Carbo Pulley

More details

Harken's 29mm Carbo Ringot Block is a must-have for modern marine hardware: compact, ultralight, and designed for minimal friction, it ensures precise and secure adjustment for any type of sailing. Its robustness and reliability set it apart in the market, representing the perfect balance between performance and accessibility.

  • Sheave Ø: 29 mm
  • Overall length: 78 mm
  • Weight: 28 g
  • Max. rope Ø: 8 mm
  • Max. working load: 150 kg

Harken's 29mm Carbo Ringot Block is characterized by a high load capacity combined with a featherlight weight. Perfect for demanding sailors, it complements Harken's high-end Black Magic range, while offering exceptional value for money. Its modern design and optimized materials make this block a preferred choice for enthusiasts seeking efficiency and safety.

  • Ultra-low friction for smooth operation, even under high tension
  • Compact construction optimizing deck space
  • High load resistance thanks to the quality of Harken materials
  • Quick and easy installation, especially with its practical ringot
  • Reduced weight without compromising on strength

Whether you are an amateur or a professional, this model ensures reliable performance in all circumstances, for quick and precise maneuvers, meeting the demands of the most challenging sailing.


SKU: 341  |  Barcode: 097653100225
Regular price €4022 EUR

Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 78 mm
Length (in) 3 1/16 in
Weight (g) 28 g
Weight (oz) 1 oz
Max rope Ø (mm) 8 mm
Max rope Ø (in) 5/16 in
Max working load (kg) 150 kg
Max working load (lb) 330 lb
Breaking load (lb) 1000 lb
Breaking load (kg) 454 kg
Shackle Ø (mm) 4 mm
Shackle Ø (in) 5/32 in

Our tips for choosing

Workload and breaking load

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

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

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

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

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.