Harken Midrange Single Block w/Aluminum Sheave

The Harken Midrange Single Block is built with robust construction to handle the high loads found on medium and large offshore boats, a step up from Harken's smaller dinghy and daysailer blocks.

The sheave runs exclusively on a ball bearing system rather than a plain bushing, giving fast trim and release under any load rather than binding up when a sheet is under heavy tension.

At a 76mm (3-inch) sheave and rated to a 2,800-lb maximum working load, it's built for the kind of sustained, heavy-load service an offshore boat demands. The aluminum sheave version trims some weight versus the standard sheave. Explore more sailing hardware.

• Rated to a 2,800-lb maximum working load
• Ball bearing system for fast trim under any load
• Built for medium and large offshore boats
• 76mm (3-inch) sheave