Product Description Harken 125mm Aluminum FootblockThe entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same. Carrying some of the highest loads imposed by running rigging, these strong, lightweight blocks feature Torlon® roller bearings housed in a center cage. Rollers stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Blocks are easily disassembled with a single hex wrench. Either metric or imperial flathead fasteners may be used for mounting and are not exposed. Specifications: Sheave Ø (mm) 125 mm Sheave Ø (in) 4 15/16 in Length (mm) 176 mm Length (in) 6 15/16 in Weight (g) 972 g Weight (oz) 34.29 oz Maximum line Ø (mm) 19 mm Maximum line Ø (in) 3/4 in Fasteners (mm) 12 FH mm Fasteners (in) 1/2 FH in Maximum working load (kg) 4990 kg Maximum working load (lb) 11000 lb Breaking load (kg) 9979 kg Breaking load (lb) 22000 lb Height (mm) 43 mm Height (in) 1 11/16 in Number of fasteners 4 A (mm) 17 mm A (in) 21/32 in B (mm) 45 mm B (in) 1 25/32 in C (mm) 113 mm C (in) 4 7/16 in D (mm) 34.5 mm D (in) 1 11/32 in E (mm) 127.5 mm E (in) 5 1/32 in F (mm) 176 mm F (in) 6 29/32 in G (mm) 28 mm G (in) 1 3/32 in
