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.
Part no. 3242: 75mm Spriddle Block - Swivel, Becket
Specifications
- Sheave Ø (mm) 75 mm
- Sheave Ø (in) 2 15/16 in
- Length (mm) 225 mm
- Length (in) 8 7/8 in
- Weight (g) 538 g
- Weight (oz) 18.96 oz
- Shackle pin Ø (mm) 8 mm
- Shackle pin Ø (in) 5/16 in
- Maximum line Ø (mm) 14 mm
- Maximum line Ø (in) 9/16 in
- Maximum working load (kg) 2268 kg
- Maximum working load (lb) 5000 lb
- Breaking load (kg) 4536 kg
- Breaking load (lb) 10000 lb
Resources/References
- Need help to design your Harken system - take a look here for the Harken System Guides and Drawings
- Take a look here for all the official Harken Support Information