Name: vertical bullet cable 29 mm
Brand: HARKEN
SKU: 108
Price: 43.00 USD
Availability: InStock

Voir tous les produits de la catégorie simple pulley

vertical bullet cable 29 mm - HARKEN

The Harken 29 mm Bullet upright wire block is designed for smooth, low-friction fairlead guidance. This compact and lightweight block ensures optimal performance, even under loads, thanks to its wire-resistant aluminum sheave.

Sheave Ø: 29 mm
Length: 38 mm
Weight: 43 g
Max. line Ø: 8 mm
Maximum working load: 227 kg

This model features needle bearings that guarantee exceptional performance under tension, facilitating quick line handling under both heavy and light loads. The hardcoat anodized aluminum sheave with PTFE impregnation provides superior resistance to corrosion and wear, surpassing most competing models and setting a new standard for endurance on the market.

Needle bearings for high load capacity and precise movement
Hardcoat aluminum sheave with PTFE impregnation for increased robustness and optimal resistance to electrolytic corrosion
Compact structure for easy installation and space-saving on board
Ideal versatility for most onboard adjustment systems, thanks to its multiple variations
Harken product, renowned for its quality and performance in the nautical world

SKU: 108 | Barcode: 097653003182

$43⁰⁰ USD

Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 38 mm
Length (in) 1 1/2 in
Weight (g) 43 g
Weight (oz) 1.5 oz
Max rope Ø (mm) 8 mm
Max rope Ø (in) 5/16 in
Screw (mm) 5 RH mm
Screw (in) #10 RH 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.