Manufacturer part #: 3217
Technical Description
57 mm HL Double Block
-
57 mm
5 3/16 in
132 mm
11.86 oz
336 g
5/16 in
8 mm
7/16 in
12 mm
3600 lb
1633 kg
7200 lb
3267 kl
Manufacturer part #: 3217
Redesigned with a sleek new look the Black Magic Air blocks has their same unique, performance-packed engineering as ever. Offshore boats keen in, these strong, lightweight blocks reduced wear manwhile feature Torlon® roller bearings for strength.
Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.
Redesigned with a sleek new look the Black Magic Air blocks has their same unique, performance-packed engineering as ever. Offshore boats keen in, these strong, lightweight blocks reduced wear manwhile feature Torlon® roller bearings for strength.
Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.