Name: Micro Block with 22mm shackle
Brand: HARKEN
SKU: 234
Price: 20.90 EUR
Availability: InStock

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Micro Block with 22mm shackle

More details

Ideal for windsurfers, dinghies, and low-load trim bumps, this block fits perfectly on boats of all sizes, meeting the demands of the most discerning sailors.

Overall Length: 57 mm (2 1/4 in)
Sheave Ø: 22 mm (7/8 in)
Weight: 21 g (0.75 oz)
Shackle Ø: 5 mm (3/16 in)
Maximum Line Capacity: 6 mm (1/4 in)
Maximum Working Load: 91 kg (200 lb)
Breaking Load: 544 kg (1200 lb)

The Micro Block 22 mm blocks are characterized by their ultra-compact size and light weight, while maintaining exceptional strength. Harken technology ensures smooth and effortless use, even under high tension.

Thanks to its superior quality materials, the Micro Block 22 mm 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 lines up to 6 mm.

Low-friction bearing, ideal for quick and precise maneuvers.
Stainless steel body and optimized sheave for increased resistance to marine corrosion.
Compact system for easy integration on all types of sails or deck layouts.
Design conceived to maximize longevity, even in intensive conditions.
Versatility of use: suitable for both precise adjustments and light load applications.

SKU: 234 | Barcode: 097653008514

€20⁹⁰ EUR €24⁴⁷

Length (in) 2 1/4 in
Sheave Ø (mm) 22 mm
Sheave Ø (in) 7/8 in
Length (mm) 57 mm
Weight (g) 21 g
Weight (oz) .75 oz
Shackle Ø (mm) 5 mm
Shackle Ø (in) 3/16 in
Max. rope Ø (mm) 6 mm
Max. rope Ø (in) 1/4 in
Max. working load (kg) 91 kg
Max. working load (lb) 200 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.