Verfahren zur Herstellung von Wälzlagerinnenringen und Presse zur Durchführung dieses Verfahrens

摘要

Method and apparatus for forming ball bearing races from lengths of tubing. A mandrel is inserted into the interior of the tube. A die having a shape conforming to that of a ball bearing raceway is positioned about the exterior of the tube at approximately its midpoint. The opposite axial ends of the tube are then compressed by jaws to form shoulders on each axial end of the tube to form the raceway.