Name: 40mm Carbo pulley to be plated in Ringot
Brand: HARKEN
SKU: 2 163
Price: 47.99 EUR
Availability: InStock

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40mm Carbo pulley to be plated in Ringot - HARKEN

This low-friction pulley is designed to offer robustness, reliability, and accessibility, while guaranteeing an exceptional working load for smooth and secure adjustment.

Sheave diameter: 40 mm
Overall length: 74 mm
Weight: 139 g
Max rope diameter: 10 mm
Maximum working load: 220 kg
Breaking load: 735 kg
Hole spacing: 63 mm

Its compact and lightweight body makes a difference during intensive maneuvers, while its ability to withstand high loads (up to 220 kg working and 735 kg breaking) makes it a safe choice for your deck adjustments. Versatile, the Carbo 40 mm flush-mounted pulley with becket is easily installed wherever reliability, strength, and simple adjustment are essential on board.

SKU: 2 163 | Barcode: 097653271765

€47⁹⁹ EUR

Sheave diameter (mm) 40 mm
Sheave diameter (in) 1 9/16 in
Length (mm) 74 mm
Length (in) 2 29/32 in
Weight (g) 139 g
Weight (oz) 4.9 oz
Max rope diameter (mm) 10 mm
Max rope diameter (in) 3/8 in
Hole spacing (mm) 63 mm
Hole spacing (in) 2 1/2 in
Maximum working load (kg) 220 kg
Maximum working load (lb) 485 lb
Breaking load (kg) 735 kg
Breaking load (lb) 1620 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.