Name: Airblock 16 mm single
Brand: HARKEN
SKU: 404
Price: 19.96 EUR
Availability: InStock

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Airblock 16 mm single

More details

Ultra-compact and lightweight, it is designed to work perfectly with small synthetic lines, ensuring optimal handling in all sailing conditions.

Sheave Ø: 16 mm
Length: 29 mm
Weight: 10 g
Max rope Ø: 5 mm
Maximum working load: 113 kg
Breaking load: 544 kg

The Airblock 16 mm single stands out for its miniature size, while offering exceptional robustness. Its patented stainless steel ball bearing system provides remarkable fluidity and high load capacity for such a small size.

Patented captive ball bearing system, optimizing durability and lightness
Innovative O-ring, holding the line in the sheave during intermittent loads
Harken-designed for maximum safety and performance
Suitable for high-tech dinghies and sailboats seeking the best in miniature equipment

SKU: 404 | Barcode: 097653014904

€19⁹⁶ EUR

Sheave Ø (mm) 16 mm
Sheave Ø (in) 5/8 in
Length (mm) 29 mm
Length (in) 1 1/8 in
Weight (g) 10 g
Weight (oz) .33 oz
Max rope Ø (mm) 5 mm
Max rope Ø (in) 7/32 in
Max working load (kg) 113 kg
Max working load (lb) 250 lb
Breaking load (lb) 1200 lb
Breaking load (kg) 544 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.