Abstract
Cover Photo: Light‐weight countershaft in an in‐line 4‐cylinder engine. This forged steel countershaft of ball bearing type replaces cast countershafts with plain bearings, allowing delicate shapes and thus reducing weight by one third. 2009 Steel Innovation Prize by the German Steel Industry Association. Copy by courtesy of Schaeffler KG, Herzogenaurach, and Hirschvogel Umformtechnik GmbH, Denklingen, and Stahl‐Informations‐Zentrum, Düsseldorf.