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75 mm Aluminum Double Block — Swivel 75 mm Aluminum Double Block — Swivel
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75 mm Black Magic

75 mm Aluminum Double Block — Swivel

Part No. 1971
  Not available on-line please contact Harken UK
Sheave Ø (mm)75 mm
Maximum line Ø (mm)14 mm
Maximum working load (kg)3402 kg

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)75 mm
Length (mm)134 mm
Weight (g)728 g
Shackle pin Ø (mm)10 mm
Maximum line Ø (mm)14 mm
Maximum working load (kg)3402 kg
Breaking load (kg)6804 kg
DWG: 1971.dwg (open/save)
DXF: 1971.dxf (open/save)
IGS: 1971.igs (open/save)
EPS: 1971.eps (open/save)
High-res JPG: 1971.jpg (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

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