Name: Harken HBB254 75mm Double Black Magic High-Load Stand-Up Block
Brand: Pacific Sailboat Supply
SKU: 1004158
Price: 1248.52 USD
Availability: InStock

HARKEN HBB254

Double Black Magic® Stand-up AirBlock® - 75mm NEW!

The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.

Used on offshore boats, these strong, lightweight blocks feature high-load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum side plates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Like all Black Magic® AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single hex wrench.

Use for:

Sheets
Halyards
Running backstays
Control lines

Specifications:

Sheave Diameter - 75mm (2-15/16")
Max Line Diameter - 9/16" (14mm)

Mfg No.	Description	Length	Number of Fasteners	Max Working Load
HBB254	Double Footblock w/ lockoff	6.5" (165mm)	4	7,500 Lbs (3400kg)

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.