The TB Wood's BK5058 is a light-duty arm FHP sheave designed for efficient power transmission in various industrial applications. This sheave features a 4-3/4" outside diameter, a 5/8" finished bore, and a single groove, making it suitable for use with A (4L) or B (5L) cross-section V-belts. Constructed from durable cast iron, the BK5058 ensures longevity and reliable performance under moderate load conditions. Its compatibility with both A and B belts offers flexibility in belt selection, while the finished bore design facilitates easy installation and secure mounting. The sheave's lightweight and economical design makes it an ideal choice for applications requiring efficient and cost-effective power transmission solutions.