Name: Double vertical bullet 29 mm
Brand: HARKEN
SKU: 220
Price: 52.65 EUR
Availability: InStock

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Double vertical bullet 29 mm

More details

Harken's 29 mm Vertical Double Bullet is a low-friction pulley designed for precise fairlead of jib sheets. Compact, lightweight, and efficient, it ensures quick and safe maneuvering even under high or light loads.

Length: 38 mm (1 1/2 in)
Sheave diameter: 29 mm (1 1/8 in)
Weight: 64 g (2.25 oz)
Maximum line diameter: 8 mm (5/16 in)
Maximum working load: 181 kg (400 lb)
Breaking load: 907 kg (2000 lb)
Compatible fastening: 5 RH mm (#10 RH in) screw

Harken's 29 mm Vertical Double Bullet stands out with its compact design and very low friction, which truly simplifies the adjustment of your jib sheets. It offers unparalleled fast engagement, even under extreme loads, with instantaneous line release and recovery, minimizing the effort required.

High-quality materials for maximum durability
Excellent load distribution for safe operation
Multi-purpose: ideal for most on-board adjustment applications
Designed for easy installation and universal compatibility

SKU: 220 | Barcode: 097653008347

€52⁶⁵ EUR

Length (in) 1 1/2 in
Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 38 mm
Weight (g) 64 g
Weight (oz) 2.25 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) 181 kg
Maximum 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.