On the basis of the traditional technology, the said invention has added the precision rolling and diameteric trimming of bearing race. Floating construction is adopted for said roller of the precision rolling. With the exception for chamfering and deburring, less lathing is required by said processing in machining of the forged workpiece of the bearing race, which can be polished directly. Moreover, the spheroidizing annealing process is eliminated. Said processing can be applied to all medium and small size diameter bearing race manufacturing. It utilized ordinary press, boring machine and induction heating equipment. |