Name: 29mm Carbo plate pulley
Brand: HARKEN
SKU: 350
Price: 19.73 EUR
Availability: InStock

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29mm Carbo plate pulley - HARKEN

This compact block, part of the low-friction Carbo Air range, stands out for its exceptional lightness and robustness, while offering excellent value for money. Perfectly suited for precise and easy adjustments, it supports you in all your maneuvers thanks to its advanced technology.

Sheave Ø: 29 mm
Length: 53 mm
Weight: 17 g
Max rope Ø: 8 mm
Maximum working load: 150 kg
Breaking load: 454 kg

Its high breaking load, for such a small size, is an undeniable advantage compared to traditional solutions.

Ultra-light design for quick maneuvers
Optimized mechanical resistance to withstand high tensions
Perfect compatibility with ropes up to 8 mm in diameter
Limited friction for maximum efficiency with each use
Manufactured by Harken, an international benchmark in the marine industry

SKU: 350 | Barcode: 097653104254

€19⁷³ EUR

Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 53 mm
Length (in) 2 1/8 in
Weight (g) 17 g
Weight (oz) .6 oz
Max. rope Ø (mm) 8 mm
Max. rope Ø (in) 5/16 in
Maximum working load (kg) 150 kg
Maximum working load (lb) 330 lb
Breaking load (lb) 1000 lb
Breaking load (kg) 454 kg

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.