Harken 57 mm and 75
mm 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. The 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.
The 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.
Harken 57/75 mm Flip-Flop Blocks
We at Mauri Pro Sailing are fully committed to be your Harken 57/75 mm Flip-Flop Blocks specialist not only providing the sailing community with a comprehensive and easy to use web site but with all the appropriate technical information that you might need to select your sailboat hardware and equipment. If you need any assistance selecting the appropriate Harken 57/75 mm Flip-Flop Blocks
please contact us. Our crew is ready to help!
Pictures and text courtesy of the manufacturer.