TB Woods BK100118 Pulley/Sheave is a cast-iron V-belt pulley from the TB Woods division of Altra Industrial Motion. This 4L-belt compatible pulley features a 9.75-inch outside diameter and a 1.125-inch bore bored to size for a precise shaft fit, enabling quick, accurate alignment in industrial drive trains. The BK100118 part is designed for use with conventional 4L V-belt drives and is suitable for light-to-moderate power transmission in equipment such as machine tools, conveyors, and general manufacturing lines. Manufactured to TB Woods’ standard tolerances, the unit offers steady belt tracking and durable wear characteristics expected from cast-iron pulleys in demanding industrial environments.
