Name: 29mm Triple Bullet
Brand: HARKEN
SKU: 86
Price: 75.92 EUR
Availability: InStock

Voir tous les produits de la catégorie triple pulley

29mm Triple Bullet

More details

Harken's 29 mm Triple Bullet is a low-friction block designed for precise fairlead of control lines to the cockpit. Ultra-compact and lightweight, it perfectly meets the performance requirements of modern sailboats, whether under high or low load.

Sheave Ø: 29 mm
Overall length: 76 mm
Weight: 106 g
Max rope Ø: 8 mm
Maximum working load: 272 kg
Breaking load: 907 kg

Harken's 29 mm Triple Bullet stands out with its robust and optimized design, offering unparalleled smoothness thanks to its low friction coefficient. It significantly improves maneuverability when setting and managing control lines, thanks to faster hauling and releasing, even under high tension. Its ability to withstand a maximum working load of 272 kg and an impressive breaking load of 907 kg makes it a preferred choice for demanding racers and cruisers seeking reliability.

Harken's cutting-edge technology ensures an extended lifespan and increased corrosion resistance.
Three integrated sheaves for maximum versatility on rigging and adjustment systems.
Compact size limits onboard clutter without compromising holding power.
Enhanced safety thanks to a high breaking load of 907 kg.
Suitable for a wide range of ropes up to 8 mm in diameter

SKU: 86 | Barcode: 097653002925

€75⁹² EUR

Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 76 mm
Length (in) 3 in
Weight (g) 106 g
Weight (oz) 3.75 oz
Shackle pin Ø (mm) 5 mm
Shackle pin Ø (in) 3/16 in
Max rope Ø (mm) 8 mm
Max rope Ø (in) 5/16 in
Maximum working load (kg) 272 kg
Maximum working load (lb) 600 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.