This is a Martin 50B13 Roller Chain Sprocket, a vital component for mechanical power transmission systems. Manufactured by Martin, a recognized name in industrial automation and motion controls, this sprocket is designed for reliable performance in various applications.

The Martin 50B13 sprocket is clearly marked with its model number, 50B13, both on the item itself and on its original packaging. A key feature of this item is its country of origin, proudly stated as "MADE IN THE U.S.A." on the box. This listing includes one Martin 50B13 sprocket, housed in its original box, as pictured. It is ideal for industrial automation, motion control, and mechanical power transmission needs, serving as a genuine Martin replacement part for roller chain systems.