HARKEN
57mm Carbo Air® Single Block with Cam

$120.99

In stock online.
+
Model # 1171800 | Mfg # 2615 | UPC # 97653088998

Harken 57mm Carbo Air® Single Block with Cam arms can be locked in more than five positions for fair leads.

Low-friction Carbo AirBlocks® are lightweight, strong, reliable—and economical. Consistently 30% lighter and 60% stronger than equivalent Classic blocks. The sideplates are UV-stabilized, high-strength resin and designed for small-diameter lines favored by racers. Good for jib and mainsheet systems on high-performance dinghies, and for high-load control lines on small keelboats.

Recipient of both the Dame Award and Sail Magazine’s Freeman-Pittman Award for innovation, this innovative line of blocks turns fiber-reinforced composite construction into a reliable strength-to-weight ratio you can depend on. Companions to the popular Harken Black Magic block line, these small, compact blocks work well with very high working loads for easy trimming.   

Key Features 

  • High strength-to-weight ratio block
  • Harken’s most innovative blocks
  • 30% lighter, 60% stronger than equivalent conventional blocks
  • Smaller block for jib and mainsheet systems on high-performance dinghies 
  • Use for high-load control lines on small keelboats
  • Sheave Diameter: 2 1/4" (57 mm)
  • Max. Line Diameter: 3/8" (10 mm)
  • Max. Working Load (MWL): 300 lb. (136 kg) 
  • Breaking Load: 750 lb. (340 kg)
  • Weight: 9.5 oz. (269 g)
  • Length: 4 5/16" (110 mm)

Specs

57mm Carbo Air® Single Block with Cam

Name Value
Ball Bearings Delrin
Becket No Becket
Diameter 3/8 Inch or 10 mm
Direction Any
Integral Cleat Integral Cam
Length 4 5/16 Inches
Mount Type Swivel Shackle
Ratchet Non Ratcheting
Safe Working Load 300 Pounds
Sheave Diameter 57 mm
Type Single
Weight 9.5 Ounces

Advice

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

Related West Advisor Articles

Reviews

Product Q & A

RETURN TO TOP