Name: Carbo Triple Ringot Pulley 29 mm
Brand: HARKEN
SKU: 345
Price: 102.00 USD
Availability: InStock

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Carbo Triple Ringot Pulley 29 mm - HARKEN

Designed to provide precise and secure control of your maneuvers, this compact triple-sheave block meets the demands of modern sailors.

Sheave diameter: 29 mm
Overall length: 85 mm
Weight: 77 g
Maximum rope diameter: 8 mm
Maximum working load: 449 kg

The Carbo Triple Ringot Block 29 mm stands out as the number one choice over traditional models on the market thanks to its exceptional robustness and very high working load.

Carbo Air™ design for low friction coefficient
High strength with a breaking load of 907 kg
Three robust sheaves ensuring smooth and precise adjustment
High-end materials guaranteeing lightness and durability
Optimal compatibility with ropes up to 8 mm

SKU: 345 | Barcode: 097653100454

$102⁰⁰ USD

Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 85 mm
Length (in) 3 3/8 in
Weight (g) 77 g
Weight (oz) 2.7 oz
Max. rope Ø (mm) 8 mm
Max. rope Ø (in) 5/16 in
Max. working load (kg) 449 kg
Max. working load (lb) 990 lb
Breaking load (lb) 2000 lb
Breaking load (kg) 907 kg
Shackle pin Ø (mm) 5 mm
Shackle pin Ø (in) 3/16 in

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.