Name: 57mm Carbo Pulley Ratchamatic HTE
Brand: HARKEN
Price: 129.00 EUR
Availability: InStock

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57mm Carbo Pulley Ratchamatic HTE - HARKEN

57mm Carbo Pulley with Ratchamatic HTE: Intelligent load management & innovative Ratchamatic® system. Enjoy Harken control.

More details

Equipped with the Ratchamatic® system, it rotates freely under light loads, then automatically engages the ratchet mechanism for optimal control as tension increases.

Length: 103 mm
Lightweight: 104 g
Maximum working load: 227 kg
Breaking load: 907 kg
Sheave diameter: 57 mm

The Carbo 57 mm Ratchamatic HTE block offers a real advantage thanks to its stiffened spring. This allows the ratchet to engage at a much higher load, letting the sheave spin freely for longer. This advanced mechanism provides more fluidity during rapid maneuvers, particularly during gybes, where quick and controlled tension release gives a decisive advantage on the water. The 15:1 holding power on this block also places it above many alternatives in terms of efficiency and ease of use.

Delayed ratchet activation for customized load management
Smooth, auto-engaging system to optimize maneuver efficiency
Lightweight, compact and made from high-quality materials for durability in extreme marine conditions
Suitable for ropes up to 10 mm in diameter, ideal for sheets and spinnaker guys on high-performance boats
The Harken brand guarantees robustness and reliability with a breaking load of up to 907 kg

SKU: 2165.HTE | Barcode: 097653285014

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€129⁰⁰ EUR €156¹⁸

Tax included Shipping calculated at checkout.

Length (mm) 103 mm
Length (in) 4 1/16 in
Weight (g) 104 g
Weight (oz) 3.7 oz
Maximum working load (kg) 227 kg
Maximum working load (lb) 500 lb
Breaking load (kg) 907 kg
Breaking load (lb) 2000 lb
Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Max rope Ø (mm) 10 mm
Max rope Ø (in) 3/8 in
Shackle Ø (mm) 5 mm
Shackle Ø (in) 3/16 in
Holding power 15:1

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.