Name: Bullet single cable Ringot 29 mm
Brand: HARKEN
SKU: 83
Price: 21.58 EUR
Availability: InStock

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Bullet single cable Ringot 29 mm

More details

The Harken Ringot 29mm single-cable Bullet pulley is designed to provide precise and smooth rearward guidance of the boom, thanks to its low coefficient of friction. Compact, lightweight, and robust, it ensures excellent loading and unloading speed under all load conditions, thanks to its cable-resistant aluminum sheave.

Sheave diameter: 29 mm
Total length: 70 mm
Weight: 35 g
Maximum rope diameter: 8 mm
Maximum working load: 227 kg
Breaking load: 907 kg

The Harken Bullet 29mm single-cable ring stand out for its exceptional lightness combined with impressive strength. It features high-performance needle bearings capable of withstanding heavy loads while maintaining smooth and reliable operation. Its hard-coat anodized aluminum sheave, impregnated with PTFE, ensures superior resistance to electrolytic corrosion, thus extending the product's lifespan even in the most demanding marine environments.

Ultra-low friction for optimized performance during quick adjustments
Sheaves made of hard-coat anodized aluminum impregnated with PTFE, synonymous with robustness and longevity
High-capacity needle bearings, to support intense loads without compromising smoothness
Compact design intended to easily integrate into most setup configurations
Suitable for ropes up to 8 mm, perfect for a wide range of nautical applications.

SKU: 83 | Barcode: 097653002895

€21⁵⁸ EUR

Sheave diameter (mm) 29 mm
Sheave diameter (in) 1 1/8 in
Length (mm) 70 mm
Length (in) 2 3/4 in
Weight (g) 35 g
Weight (oz) 1.25 oz
Maximum rope diameter (mm): 8 mm
Maximum rope diameter (in) 5/16 in
Maximum working load (kg) 227 kg
Maximum working load (lb) 500 lb
Breaking load (kg) 907 kg
Breaking load (lb) 2000 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.