Name: Micro Block triple 22 mm
Brand: HARKEN
Price: 61.15 EUR
Availability: InStock

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Micro Block triple 22 mm - HARKEN

Micro Block triple 22 mm: low coefficient of friction, ultra-compact and lightweight. Harken's benchmark for performance and reliability.

More details

Ideal for fine-tuning applications on windsurfers, dinghies, or any boat requiring a compact, high-performance, and lightweight solution.

Length: 51 mm (2 in)
Sheave diameter: 22 mm (7/8 in)
Weight: 57 g (2 oz)
Max rope diameter: 6 mm (1/4 in)
Max working load: 227 kg (500 lb)
Breaking load: 544 kg (1200 lb)

The 22 mm Micro Block pulleys are characterized by their ultra-compact size and featherlight weight, while maintaining exceptional strength. Harken technology ensures smooth and effortless operation, even under high tensions.

Thanks to its superior quality materials, the 22 mm Micro Block ensures a long lifespan and consistent efficiency. Its light weight does not burden your equipment, while maintaining robustness capable of withstanding a breaking load of 544 kg with perfect compatibility with ropes up to 6 mm.

Key technical advantages: technology and performance

Ultra-compact and lightweight for easy installation even on small boats
High-performance bearings ensuring smooth movement and reduced wear
Corrosion-resistant materials for increased durability in the marine environment
Suitable for precise adjustments requiring speed and ease of maneuver
Perfectly suited for equipment requiring heavy loads with minimal bulk

SKU: 228 | Barcode: 097653008415

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€61¹⁵ EUR

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Length (in) 2 in
Sheave Ø (mm) 22 mm
Sheave Ø (in) 7/8 in
Length (mm) 51 mm
Weight (g) 57 g
Weight (oz) 2 oz
Max rope Ø (mm) 6 mm
Max rope Ø (in) 1/4 in
Maximum working load (kg) 227 kg
Maximum working load (lb) 500 lb
Breaking load (kg) 544 kg
Breaking load (lb) 1200 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.