The Harken 6.5T Alum Loop V Block is a major advancement in the brand's loop block series for elite racers. Engineers have streamlined the mechanics by integrating the axial and thrust bearings into one set of high-tech V-shaped titanium rollers. This creates a strong and lightweight block that boasts exceptional efficiency at high loads, while remaining effortlessly responsive in light air. Constructed with aluminum sideplates, a titanium sheave, and captive titanium roller bearings, Harken V blocks are designed for easy maintenance and inspection. Part No. 3297AL, this 6.5T Aluminum V Block has an 82 mm sheave Ø (3 1/4 in), a maximum line Ø of 16 mm (5/8 in), and a maximum working load of 6500 kg (14300 lb).