| 摘要 |
Provided are a turning method for enabling machining of double-row raceway surfaces (grooves) so as to highly precisely set a mutual PCD dimension error and a groove pitch (raceway surface pitch), and a turning device capable of such turning. The turning method and the turning device perform turning on respective raceway surfaces (2a, 3a) of an inner race (2) and an outer race (3) of a double-row bearing (1). The respective raceway surfaces of any one of the inner race (2) and the outer race (3) are subjected to simultaneous turning with a turning tool (10) including a plurality of cutting tools (11A, 11B). After that, a direction of the plurality of cutting tools (11A, 11B) of the turning tool (10) is changed, and the respective raceway surfaces (2a, 3a) of another one of the inner race (2) and the outer race (3) are subjected to simultaneous turning with the turning tool (10). |
