Harken 75 mm Spriddle 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. 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.

Product Specifications

Sheave Ø (mm) 75 mm
Sheave Ø (in) 2 15/16 in
Length (mm) 199 mm
Length (in) 7 13/16 in
Weight (g) 503 g
Weight (oz) 17.76 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