Harken Block-100mm Black Magic Standup w/Becket

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. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Specifications Resources

Sheave Ø (mm) 100 mm

Sheave Ø (in) 3 15/16 in

Length (mm) 235 mm

Length (in) 9 1/4 in

Base Ø (mm) 93 mm

Base Ø (in) 3 21/32 in

Weight (g) 921 g

Weight (oz) 32.49 oz

Maximum line Ø (mm) 16 mm

Maximum line Ø (in) 5/8 in

Maximum working load (kg) 3402 kg

Maximum working load (lb) 7500 lb

Breaking load (kg) 6804 kg

Breaking load (lb) 15000 lb

Fasteners (mm) 10 FH mm

Fasteners (in) 3/8 FH in

A (mm) 93 mm

A (in) 3 21/32 in

B (mm) 97 mm

B (in) 3 27/32 in

C (mm) 59 mm

C (in) 2 5/16 in

Includes Includes padeye. Uses hole spacing and base dimensions of 648 padeye.