Name: Harken 3247 100mm Single Black Magic High-Load Swivel Block With Becket
Brand: Pacific Sailboat Supply
SKU: 395062
Price: 845.95 USD
Availability: InStock

Harken 3247

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.

Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Sheave Ø (mm)100 mm

Sheave Ø (in)3 15/16 in

Length (mm)241 mm

Length (in)9 1/2 in

Weight (g)675 g

Weight (oz)23.82 oz

Shackle pin Ø (mm)10 mm

Shackle pin Ø (in)3/8 in

Maximum line Ø (mm)16 mm

Maximum line Ø (in)5/8 in

Maximum working load (kg)3402 kg

Maximum working load (lb)7500 lb

Breaking load (kg)6804 kg

Breaking load (lb)15000 lb

At Pacific Sailboat Supply, we’re passionate about what we do, and our primary goal is elevating your sailing and boating experience. We cater specifically to racers and enthusiasts of high-performance sailing, offering a meticulously curated selection from over 300 premier marine brands. Our website features less than 5% of our available products, ensuring only the finest sailboat rigging, hardware, electronics, and more make the cut.

But our expertise doesn’t stop with sailboats. We also provide top-quality supplies for powerboats. If you don’t find exactly what you’re looking for, our team is ready to assist you. Reach out via email, chat, phone, or directly through our website messaging service. At Pacific Sailboat Supply, we’re here to help you navigate your sailing and boating needs with excellence.