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Harken 57mm Swivel Carbo Ratchamatic® Block w/ Cam-Matic® Cleat and Becket

$194.65 $170.99
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SKU:
HK_HAR2628
Harken 57mm Swivel Carbo Ratchamatic® Block w/ Cam-Matic® Cleat and Becket

Harken's Carbo Ratchamatic® Blocks are load-sensing blocks that roll freely in both directions under low loads and automatically engage the ratchet as loads increase, making shifting between ratchet and light-air modes seamless. Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly during jibes.

Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style.  The 57mm Ratchamatic® provides up to a 10:1 holding power.

The patented switch locks shackle in front or side positions, or lets block swivel to keep line from twisting. The eight-faceted, hard lube-anodizing aluminum sheave holds line securely.

 

SPECIFICATIONS:

  Imperial Metric
Sheave Diameter 2 1/4 in 57 mm
Max Line Diameter 3/8 in 10 mm
Max Working Load* 600 lb 272 kg
Breaking Load* 1,500 lb 680 kg
Holding Power w/ 180° Wrap 10:1 10:1
Shackle Pin Diameter 3/16 in 5 mm
Weight w/ Shackle 9.7 oz 275 g
Length 4 15/16 in 125 mm

*MAXIMUM WORKING LOADS AND BREAKING LOADS FOR BLOCKS BASED ON CAM STRENGTHS