Harken Block-75mm Wide Black Magic Loop

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.

Specifications

Sheave Ø (mm) 82 mm

Sheave Ø (in) 3 1/4 in

Length (mm) 116 mm

Length (in) 4 17/32 in

Width (mm) 42 mm

Width (in) 1 5/8 in

Weight (g) 345.5 g

Weight (oz) 12.2 oz

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