This Harken 3-inch single block is a classic, free-running block for sailing where low friction and reliable trimming performance are essential.
The block is designed for efficient handling of lines up to Ø12 mm and is suitable for use in rig and trim setups where compact size, low weight, and stable load capacity are important.
Harken's Classic series is known for free-running Delrin ball bearings, UV-stabilized sheaves and carbon-reinforced sideplates, as well as stainless steel reinforcements with rounded edges.
Key features
Single block with 76 mm sheave
Maximum line Ø12 mm
Working load 340 kg
Breaking strength 1134 kg
Free-running, low-friction construction
