Name: Carbo violin pulley, 57mm
Brand: HARKEN
SKU: 2 624
Price: 231.00 USD
Availability: InStock

Voir tous les produits de la catégorie simple pulley

Carbo violin pulley, 57mm - HARKEN

This Carbo Air block stands out for its exceptional lightness, outstanding robustness, and low friction coefficient, ensuring optimal performance with every maneuver.

Sheave diameter: 57 mm
Overall length: 175 mm
Weight: 295 g
Max rope diameter: 10 mm
Maximum working load: 359 kg
Breaking load: 1080 kg
Shackle pin diameter: 5 mm

The Carbo Fiddle Block with Swivel, 57mm, is distinguished by its compactness and its ability to withstand very high loads. A complementary element to Harken's Black Magic range, it appeals to both passionate sailors and demanding racers, offering reliability and safety in all circumstances, where other blocks quickly reach their limits under tension.

Lightweight and ultra-robust design thanks to advanced composite materials
Low friction coefficient for fast and smooth adjustment, even under heavy load
Compact size, ideal for installations requiring minimal bulk
Perfect integration with all Harken accessories for maximum compatibility
Unbeatable quality-price ratio for a premium range

SKU: 2 624 | Barcode: 097653104438

$231⁰⁰ USD $241⁰⁰

Sheave Ø (mm) 57 mm
Sheave Ø (in) 2 1/4 in
Length (mm) 175 mm
Length (in) 6 7/8 in
Weight (g) 295 g
Weight (oz) 10.4 oz
Max. rope Ø (mm) 10 mm
Max. rope Ø (in) 3/8 in
Maximum working load (kg) 359 kg
Maximum working load (lb) 792 lb
Breaking load (lb) 2380 lb
Breaking load (kg) 1080 kg
Shackle Ø (mm) 5 mm
Shackle Ø (in) 3/16 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.