Name: FLY 18 mm single pulley
Brand: HARKEN
Price: 30.41 EUR
Availability: InStock

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FLY 18 mm single pulley - HARKEN

FLY 18 mm single pulley: extreme strength & remarkable lightness. Harken compact design, optimal smoothness.

More details

Thanks to its lashing attachment technology, the FLY pulley combines extreme strength and remarkable lightness, specially designed for the latest generation of technical ropes.

Sheave Ø: 18 mm
Overall length: 28 mm
Weight: 7.2 g
Max. rope Ø: 5 mm
Max. working load: 125 kg
Breaking load: 450 kg

This model features stainless steel ball bearings, with a stainless steel central race and rivet, ensuring exemplary fluidity and hold, even under high tension. Ideal for sports sailboats, foiling dinghies, or Grand Prix racing boats.

Fiber-reinforced composite material design for ideal strength and featherlight weight (only 7.2 g).
Spectra® lashing system with polyester cover included, renowned for its reliability and durability in extreme conditions.
Suitable for cascading vangs and Grand Prix style backstay tackles, this pulley offers an unbeatable strength-to-weight ratio.
Exceptional working load for such a small pulley: up to 125 kg, and a breaking strength of 450 kg.

Enjoy the essential performance of this Harken bestseller

SKU: 2 698 | Barcode: 097653254652

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€30⁴¹ EUR

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Sheave Ø (mm) 18 mm
Sheave Ø (in) 23/32 in
Length (mm) 28 mm
Length (in) 1 3/32 in
Weight (g) 7.2 g
Weight (oz) .25 oz
Max. rope Ø (mm) 5 mm
Max. rope Ø (in) 3/16 in
Maximum working load (kg) 125 kg
Maximum working load (lb) 275 lb
Breaking load (lb) 992 lb
Breaking load (kg) 450 kg

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.