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Lewmar's plain-bearing Synchro Blocks are engineered for speed
Removable becket pins allow the fitting of pre-spliced lines
The front of the cage is flared to fit curved mast sections with an approximante 3" radius
The Harken 57 mm Flip-Flop Block (Part 3122) is a low-profile
HARKEN 3T Aluminum V™ Block — Wide, 3367AL Sailboat Blocks & Hardware_50 mm Utility Double Block - Universal Head Lewmar's plain-bearing Synchro Blocks areThe V block delivers another breakthrough in Harkens loop block series for Grand Prix racers. Harken engineers have simplified the mechanics by combining the axial and thrust bearings into a single bearing set of V shaped titanium rollers. The result is a strong, lightweight block that offers unmatched efficiency at high loads while spinning freely at low loads for smooth easing in light air. Harken V blocks feature titanium sheaves and captive
