75mm Carbo Single Swivel Block
Harken Harken sailboat hardware
  • 75mm Carbo Single Swivel Block

Harken 75 mm Carbo Single Swivel Block

Single Carbo AirBlock 2660 has a 2-15/16 inch diameter sheave and a shackle that swivels to prevent line twist. Carbo AirBlocks are 60 percent stronger and 30 percent lighter than Harken Classic blocks.

The 75 mm Carbo has a safe working load of 1200 lbs. It releases easily under load and is perfect for mainsheet systems on sport boats like the Melges 24, J/105 and Henderson 30.

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Tech Spec Product Info User Generated Content



2660 Block

Sheave diameter  2-15/16 inch 
Length  5-3/8 inch 
Weight w/ shackle  6.9 oz 
Shackle pin diameter  6 mm 
Max. line Diameter  9/16 inch 
Safe Working Load  1213 lbs 
Breaking Strength  3638 lbs 


  • Curved bearing race fit ball for more ball-to-race contact. Disperses load for higher strength, smaller block
  • AirBlock design with high-tech, long-glass fibers and nylon material for high strength-to-weight ratio
  • Eliminates heavy stainless sideplates


BRAND: Harken
Type: Blocks and Sheaves
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