45 mm Aluminum Double Loop Block
Model #
24116329
Mfg #
3390
$372.99
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Harken 45 mm Aluminum Double Loop Block
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. Featuring aluminum cheeks and free-rolling, high-load Torlon roller bearings, they deliver a high strength-to-weight ratio ideal for offshore boats.
Key Features
- 30% lighter and 60% higher working load than equivalent sized ball bearing blocks
- Center cage keeps Torlon roller bearings separated and parallel for lower friction
- 6061-T6 aluminum sideplates sculpted to remove excess weight
- Thin-profile, deep groove aluminum sheaves with radiused edges to protect high-tech lines
- Deep-saturation Hard Lube-anodized sheaves and sideplates for strength and durability
- High- and low-load versions available
- Breaking load is 2 times safe working load
- Dissimilar metals isolated to prevent corrosion with plastic isolators under fastener heads
- Three-way head with set screw locks shackle in front or side positions, or lets block swivel to keep line from twisting
- Easy disassembly with single hex wrench for quick maintenance
- Removable deadend post for attachment to padeye; lashings can also be used
Material
Aluminum
Safe Working Load
750 kg
Weight
103 g
Sheave Diameter
45 mm
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