Patent ID: 6176998
Filing Date: 2001-01-23
Classification: B23H,F16C

Abstract:
A method of manufacturing a bearing ring for a bearing, wherein a groove to be serving as a raceway is formed which is subsequently electrochemically machined by passing a current across a narrow gap between said bearing ring and an electrode, supplying electrolyte to the gap in a direction substantially tangential to the groove of the bearing ring, while rotating the bearing ring around an axis and removing material from the groove of said bearing ring facing said electrode, wherein the groove comprises a plurality of narrow circumferentially extending coaxial areas, and wherein the method comprises the steps of providing as the electrode an electrode with a width tangential relative to an axis of rotation and a convex cross section adapted to each particular circumferentially extending area such that during electrochemical machining a radius of curvature of the groove is kept constant and electrochemically machining the groove using said electrode.