Harken Black Magic Foot Block - 75 mm (2 15/16") - 3234

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") two directions or swivel to keep line from twisting.

Specifications:

• Sheave Diameter: 75 mm (2 15/16")
• Length: 111 mm (4 3/8")
• Weight: 277 g (9.76 oz)
• Maximum Line Diameter: 14 mm (9/16")
• Fasteners: 8 FH mm (5/16" FH)
• Maximum Working Load: 2380 kg (5250 lbs)
• Breaking Load: 4762 kg (10500 lbs)
• Height: 32 mm (1 1/4")
• Number of fasteners: 4

Dimensions:

• A: 11.5 mm (15/32")
• B: 28.5 mm (1 1/8")
• C: 70.5 mm (2 3/4")
• D: 21 mm (13/16")
• E: 77 mm (3")
• F: 110 mm (4 5/16")
• G: 17 mm (21/32")

Owner's Manual (4.80 MB)