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Harken
Harken 57 mm Carbo Ratchamatic Cheek Block
    Code: HAR2633
    Original Price:$105.45
    Price: $92.80
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    Product Description

    Includes: RH fasteners and mounting pad.

    The Harken Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is 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 Harken Ratchamatic® cheek block mounts on either port or starboard. The holding power of the 57 mm is as high as 10:1.

    For the ultimate system, mount a Harken Ratchamatic® on the boom above a cockpit-mounted switchable ratchet to allow the mainsheet to run freely in light air and to double holding power in heavy air.

    Use for:
    Main/Jib Sheets and Asymmetric spinnakers.

    Part Number: 2633


    Specifications
    Imperial Metric
    Sheave Dia. 2 1/4" 57 mm
    Length 3 1/4" 83 mm
    Weight 3.1 oz 89 gr
    Max Line Dia. 3/8" 10 mm
    Maximum Working Load 500 lbs 227 kg
    Breaking Load 2000 lbs 907 kg
    Holding Power W/180º Wrap 50 lbs = 10:1 23 kg = 10:1

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