Harken 75mm Ratchamatic Flip-Flop Block

Harken 75mm Ratchamatic Flip-Flop Block

Product Details

    Tech Info

    Product Description

    Small Boat Flip-Flop blocks pivot around the line axis to keep line close to the deck. Hinged construction allows for various lead angles.

    Lightweight, machined 6061-T6 aluminum cheeks pivot on fiber-reinforced plastic chocks. Sheave runs exclusively on a ball bearing system for fast trim and release under any load. Ball bearings, sheave, and sideplates are UV stabilized with carbon black for maximum protection.

    Ratchamatic® versions roll freely in both directions under low loads and automatically engage a ratchet mechanism as loads increase, giving sailors a holding power of up to 15:1. The ratchet engagement can be adjusted to a higher or lower load depending on the sailor's strength, sailing style and system usage.

    Reversible cam arms adjust and lock in a wide range of positions for crew accessibility and to accommodation of changing lead angles.

    Part Number: 2688

    Imperial Metric
    Sheave Dia. 3" 75 mm
    Width 2 1/2" 64 mm
    Length 5 5/8" 143 mm
    Height 3 1/2" 89 mm
    Max Line Dia. 7/16" 12 mm
    Weight 11 oz 304 gr
    Maximum Working Load 750 lbs 340 kg
    Breaking Load 1500 lbs 680 kg