Harken 57mm Ratchamatic Flip-Flop Block w/ 150 Cam-Matic

Harken 57mm Ratchamatic Flip-Flop Block w/ 150 Cam-Matic

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: 2145

    Imperial Metric
    Sheave Dia. 2 1/4" 57 mm
    Width 2 5/8" 66 mm
    Length 4 5/16" 110 mm
    Height 4 3/16" 106 mm
    Max Line Dia. 3/8" 10 mm
    Weight 12 oz 329 gr
    Maximum Working Load 300 lbs 136 kg
    Breaking Load 600 lbs 272 kg

    Maximum working loads and breaking loads for blocks based on cam strengths.