Boston Gear 80B15-1 Roller Chain Sprocket is a 15-tooth drive sprocket designed for 3/16-inch roller chain, featuring a 1-3/16-inch keyed bore for secure shaft mounting. As part of the Boston Gear 80B family from Boston Gear (Altra Industrial Motion), this sprocket is built to transmit torque in compact power-transmission assemblies that use No. 80 chain. The keyed bore accepts a matching shaft key to minimize slip under load and maintain precise chain alignment. Bore options vary within the 80B15 line, with other configurations offering different bore diameters in the same family, illustrating broad compatibility with standard shaft sizes across related models.
