75mm Carbo Ratchet Block
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HARKEN75mm Carbo Ratchet Block


In stock online.
Model # 6840359 | Mfg # 2670UPC # 97653143697
75mm Carbo Ratchet Block




75mm Carbo Ratchet Block

Name Value
Ball Bearings Plastic
Becket No Becket
Diameter 7/16 Inch or 11 mm
Direction Any
Integral Cleat No Integral Cleat
Length 5 3/8 Inches
Mount Type Swivel Shackle
Ratchet Ratcheting
Safe Working Load 750 Pounds
Sheave Diameter 75 mm
Type Single
Weight 8 Ounces

Product Overview

Harken 75mm Carbo Ratchet Block with on/off switch allows the ratchet to be turned off in light air to trim and ease lines more easily.

Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Lightweight Carbo Ratchets are available in 40mm, 57mm and 75mm sizes. All the Carbo Ratchets feature a recessed On-Off switch that is easily operated from either side. The 40mm cam-arm versions work in ratchet mode only. Commonly 75mm blocks are for the main and spinnakers on larger FJs, 420's and large sportboats.

The 40mm, 57mm and 75mm Carbo Ratchamatic® is adjustable for many applications and weather conditions. The load-sensing ratchet block rolls freely in both directions under low loads, then engages the ratchet automatically as loads increase. With 180 degree wrap, you get a 15:1 holding power. 

Key Features

  • Ratchet blocks are hand and crew savers
  • Double holding power in heavy air 
  • Allows a line to be eased instantly with control 
  • On/Off switch allows the ratchet to be turned off in light air 
  • Hardkote-anodized aluminum sheaves
  • Stainless steel swivel shackle
  • Sheave Diameter: 2 15/16" (75 mm)
  • Max. Line Diameter: 7/16" (12 mm) 
  • Max. Working Load (MWL): 750 lb. (341 kg)   
  • Breaking Load: 3000 lb. (1361 kg)
  • Weight: 8 oz. (227 g)
  • Length: 5 3/8" (137 mm)


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