Rolling bearing for axle gear box of motor car, has rolling elements that are arranged in region of rolling contact surfaces on which oxidic conversion coat is formed with alkaline or acidic brine

摘要

The bearing has rolling elements (3,4) that are provided between inner bearing ring (1) and outer bearing ring (2). The inner bearing ring and outer bearing ring are made of 100CrMn6. Rolling element running surface (1a) is provided to form a region by carbonitriding microstructure. The inner bearing ring and outer bearing ring are arranged in the region of rolling element running surface. The rolling elements are arranged in the region of rolling contact surfaces on which oxidic conversion coat is formed with alkaline or acidic brine. An independent claim is included for method for manufacturing inner bearing ring and outer bearing race for rolling bearing.