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Harken 3228 57mm Double Black Magic Low-Load Block

Sale price$408.95 Regular price$465.00

HARKEN 3228 

Double Black Magic® AirBlock® - 57mm  NEW!

The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.

Used on offshore boats, this strong, lightweight block features high-load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum side plates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.

Use for:
  • Sheets
  • Halyards
  • Running backstays

Specifications:
  • Sheave Diameter - 57mm (2-1/4")
  • Max Line Diameter - 7/16" (12mm)


Mfg No. Description Length Shackle Pin
Diameter
Max Working
Load
Breaking
Load
Weight
3228 Double / swivel /
low-load
5-3/16"
(132mm)
5/16"
(8mm)
2755 Lbs
(1250kg)
5510 Lbs
(2500kg)
12.05 oz.
(342g)
Harken 3228 57mm Double Black Magic Low-Load Airblock Block - Pacific Sailboat Supply
Harken 3228 57mm Double Black Magic Low-Load Block Sale price$408.95 Regular price$465.00