REINFORCED HUB, PULLEY AND METHOD

摘要

A pulley with an integral hub spun-roll formed of a disc of sheet metal where the hub has an annular ring extending radially outward of the hub and reinforcin g the hub. Optionally, the hub has as integral flange that facilitates removal of the pulley from a shaft. A process for making a one piece pulley by pressing a shaping roller and a finishing roller against a side of a disc and displacing metal and forming a hub with an annular ring that is integral to the hub and reinforces the hub. Optionally, the process includes pressing the shaping roller and finishing roller against displa ced metal and forming a flange integral to the hub.