45 mm Aluminum Double Block — Swivel
Model #
24116360
Mfg #
3393
$454.99
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Harken 45 mm Aluminum Double Block — Swivel
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, enabling quick, efficient sail handling on high-performance vessels.
Key Features
- 30% lighter and 60% higher working load than equivalent sized ball bearing blocks
- Easy maintenance with few parts and no loose balls or rollers
- Low friction caged bearings with rollers separated and parallel
- Strong, lightweight 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 finish for strength and durability
- Three-way head allows set screw to lock shackle in front or side positions, or swivel to keep line from twisting
- Dissimilar metals isolated to prevent corrosion with plastic isolators under all fastener heads and headposts
- Breaking load is 2 times safe working load
Breaking Strength
4850
Length
106 mm
Material
Aluminum
Type
Double Block Swivel
Weight
195 g
Sheave Diameter
45 mm
