Harken 57mm Carbo Ratchamatic Cheek Block for Line-shedding and a small mounting footprint with drain holes.
Carbo Ratchets cheek blocks 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 57mm blocks are for jibsheets and spinnakers on medium sized dinghies.
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 10:1 holding power.
Mounts on port or starboard
Ratchamatic cheek blocks include metric roundhead screws and nuts
Hand-hold your loaded lines
Use for spinnaker sheet systems on dinghies, sportsboats, and medium keelboats
Ratchet cheek blocks are hand and crew savers
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
Sheave Diameter: 2 1/4" (57 mm)
Max. Line Diameter: 3/8" (10 mm)
Max. Working Load (MWL): 500 lb. (227 kg)
Breaking Load: 2000 lb. (907 kg)
Weight: 2.5 oz. (71 g)
Length: 3 1/4" (83 mm)
57mm Carbo Ratchamatic Cheek Block
3/8 Inch or 10 mm
No Integral Cleat
3 1/4 Inches
Safe Working Load
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