Name: Air Block double 16mm
Brand: HARKEN
SKU: 406
Price: 40.70 EUR
Availability: InStock

Voir tous les produits de la catégorie double pulley

Air Block double 16mm

More details

The Harken® 16mm double Air Block is the most compact block in the Harken® range, designed for sailing enthusiasts who demand precision and strength for fine-tuning their high-tech dinghies. Featuring a patented bearing system, it uses captive stainless steel ball bearings for smooth and durable operation, even in extreme conditions.

Sheave Ø: 16 mm
Overall length: 54 mm
Weight: 28 g
Maximum rope Ø: 5 mm
Maximum working load: 204 kg
Breaking load: 544 kg

This Harken® model offers an unbeatable compact/efficiency ratio.

Patented stainless steel ball bearing technology for smooth, frictionless rotation
Compact structure perfect for low-space applications
Exceptional strength despite a featherlight weight of just 28 g
Materials chosen for durability and resistance to marine corrosion
Suitable for modern synthetic fiber ropes and the demands of high-level competition

The Harken® 16mm double Air Block is aimed at the most demanding sailors looking for performance and reliability. Its innovative technical design and high-end materials make it an excellent choice for optimizing all your dinghy adjustments.

SKU: 406 | Barcode: 097653014928

€40⁷⁰ EUR

Sheave Ø (mm) 16 mm
Sheave Ø (in) 5/8 in
Length (mm) 54 mm
Length (in) 2 1/8 in
Weight (g) 28 g
Weight (oz) 1 oz
Max rope Ø (mm) 5 mm
Max rope Ø (in) 7/32 in
Max working load (kg) 204 kg
Max working load (lb) 450 lb
Breaking load (kg) 544 kg
Breaking load (lb) 1200 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.