The TB Wood's BK2878 is a precision-engineered finished bore single groove sheave designed for light-duty applications requiring reliable power transmission. With a 7/8" bore diameter and a 2.95" outside diameter, this sheave is compatible with B, 5L, A, and 4L cross-section V-belts, offering versatility across various belt types. The sheave features a 0.81" face width and a 3.01" pitch diameter for B/5L belts, ensuring optimal belt engagement and efficient power transfer. Constructed from high-quality cast iron, the BK2878 sheave provides durability and resistance to wear, making it suitable for applications where longevity and consistent performance are essential. The finished bore design allows for easy mounting on shafts with a 7/8" diameter, streamlining installation processes and reducing downtime. This sheave is ideal for light-duty machinery and equipment where space constraints and weight considerations are critical. By selecting the TB Wood's BK2878 sheave, businesses can enhance operational efficiency, reduce maintenance costs, and ensure reliable performance in their power transmission systems.