Name: 40mm Carbo Flip-flop Pulley
Brand: HARKEN
SKU: 2 181
Price: 37.18 EUR
Availability: InStock

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40mm Carbo Flip-flop Pulley - HARKEN

Its swivel axis keeps the rope as close to the deck as possible, while its articulated configuration allows for multiple orientations for maximum adaptability.

Sheave Ø: 40 mm
Overall length: 81 mm
Width: 43 mm
Height: 54 mm
Weight: 45 g
Max rope Ø: 10 mm

The Harken Carbo 40 mm Flip-flop Block boasts a lightweight design thanks to its featherlight weight of just 45 g, without sacrificing robustness or reliability. Its broad compatibility with ropes up to 10 mm, combined with its innovative articulation, ensures perfect maneuver control even in the most demanding situations.

SKU: 2 181 | Barcode: 097653294276

€37¹⁸ EUR

Sheave Ø (mm) 40 mm
Sheave Ø (in) 1 9/16 in
Length (mm) 81 mm
Length (in) 3 3/16 in
Width (mm) 43 mm
Width (in) 1 3/4 in
Height (mm) 54 mm
Height (in) 2 1/8 in
Weight (g) 45 g
Weight (oz) 1.6 oz
Max. rope Ø (mm) 10 mm
Max. rope Ø (in) 3/8 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.