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Harken 3227 57mm Single Black Magic High-Load Stand-Up Block

Sale price$382.95 Regular price$435.00

HARKEN 3227 

Black Magic® Stand-Up 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
3227 Stand-Up* 4-1/2"
(114mm)
1/4"
(6mm)
2500 Lbs
(1134kg)
5000 Lbs
(2268kg)
7.04 oz.
(200g)
Harken 3227 57mm Single Black Magic High-Load Airblock Stand-Up Block - Pacific Sailboat Supply
Harken 3227 57mm Single Black Magic High-Load Stand-Up Block Sale price$382.95 Regular price$435.00