Name: Recessed bullet light, 29mm cable
Brand: HARKEN
SKU: 288
Price: 54.22 EUR
Availability: InStock

Voir tous les produits de la catégorie simple pulley

Recessed bullet light, 29mm cable

More details

The 29mm Bullet flush-mount block for wire offers unparalleled performance for precise, smooth guidance of lines aft, with a wire-resistant sheave. This compact and lightweight block stands out for its exceptional speed of hauling and releasing, even under high loads.

Sheave Ø: 29 mm
Overall length: 76 mm
Weight: 43 g
Max rope Ø: 8 mm
Maximum working load: 181 kg

Harken's 29mm Bullet flush-mount block for wire offers increased corrosion resistance thanks to its hardcoat anodized aluminum sheave impregnated with PTFE, a major advance in terms of robustness. The specialized needle bearings allow it to support much higher loads than classic blocks, while reducing friction for smoother and faster handling.

Low friction coefficient for optimal line management
Compact and lightweight, easy to integrate into tight spaces
Hardcoat anodized aluminum sheave impregnated with PTFE for maximum resistance to electrolytic corrosion
Needle bearings suitable for high loads
Versatile use with compatibility up to 8 mm rope

SKU: 288 | Barcode: 097653010098

€54²² EUR

Length (in) 3 in
Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 76 mm
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
Hole spacing (mm) 57 mm
Hole spacing (in) 2 1/4 in
Cutout (mm) 19 x 44 mm
Cutout (in) 3/4 x 1 3/4 in
Max. working load (kg) 181 kg
Max. working load (lb) 400 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.