Bearing ring and a method for its manufacturing

摘要

A bearing ring (160, 260, 310, 410) exhibiting an inner (155, 255) and an outer (140, 240) periphery, also exhibiting a raceway (121, 221) for rolling elements on one of said peripheries, the bearing ring exhibiting a gear structure (131-138, 231-238) on one of said peripheries, as well as exhibiting at least one welding joint (151, 251). The welding joint has been formed by flash butt welding. Preferably, the gear structure (131-138, 231-238) and/or the raceway (121, 221) have been formed by rolling, machining or a combination thereof.

主权项

1. A method for manufacturing a bearing ring, the method being characterized in that it comprises the following:
forming a first gear structure on a first main surface of an elongated steel bar, 0.67%, forming a raceway on a second main surface of the elongated steel bar during the same operation that the forming of the first gear structure on the first main surface occurs such that the raceway and the first gear structure are formed at the same time, the raceway being configured to receive rolling elements such that the raceway is not engaged with another member that is non rollably positioned thereon, with the second main surface being a surface which is opposite the first main surface, bending the elongated steel bar to form a ring, so that two opposing distal ends of the elongated steel bar meet, joining said two ends of the elongated steel bar to each other by means of flash butt welding to form the bearing ring.