Boston Gear YB48A Industrial Worm Gear Reducer

Boston Gear YB48A is a steel plain spur gear designed for reliable power transmission between parallel shafts. Supplied without a keyway or setscrews, the YB48A is intended to be mounted with a hub or coupling on a mating gear in standard spur gear trains. It features 16 Diametral Pitch (DP) and a 20° pressure angle, with 48 teeth and a pitch diameter of 3 inches. The gear offers a 3/4-inch face width and a 5/8-inch bore, making it suitable for compact assemblies that require a robust steel gear. With its standard DP/PA configuration and bore size, the YB48A integrates with common 16 DP spur gear pairs and aligns with typical shaft diameters for compatibility with off-the-shelf hubs or adapters. Made from steel, this gear provides durability for moderate-load applications in industrial drive systems and can be used in equipment such as conveyors, material-handling machinery, or machine tools where parallel-axis gear meshes are employed. For mounting, consider adding a hub or setscrew-style adapter designed for a 5/8" bore to secure the gear to the shaft and ensure proper alignment and load transfer.