Abstract:
A hub is spun rolled formed of a portion of metal radially displaced from a side of a disc of sheet metal. An annular collar formed of an annular part of the disc extends inward of the hub and creates a blind bore. The collar is integral with the hub and is formed of the same sheet metal. The so formed hub that is integral to a web formed of the disc, and the collar; the web may be connected to a rim, or the extremity of the disc may be shaped into a rim to form a pulley.
Abstract:
A method for making a hub/pulley by spin forming from a disc including forming an annular collar extending radially inward of the hub and defining a blind bore of the hub.
Abstract:
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 reinforcing the hub. Optionally, the hub has as integral flange that facilitates removal of the pulley from a shaft.
Abstract:
A pulley with an integral hub spun-roll formed of a disc of sheet metal where the hub has a thickness greater than the thickness of the sheet metal. The hub has a bore and external surface for attaching to other components.