| 摘要 |
In order to make it possible to automatically superfinish an inner ring and an outer ring by one piece of equipment and fully automatically perform switching between a set for superfinishing the inner ring and a set for superfinishing the outer ring, a superfinishing machine used for both inner and outer rings comprises a bearing ring holding mechanism (6) for rotatably holding bearing rings (2, 4), and a raceway surface processing mechanism (8) for superfinishing raceway surfaces (2s, 4s) of the bearing rings. The bearing ring holding mechanism is provided with a structure moving means for moving bearing ring-equipped structures (10) toward or away from a rotation axis (Ax) according to the type of a bearing ring to be processed. The raceway surface processing mechanism is provided with raceway surface whetstone holders (Ha, Hb) for supporting both inner and outer ring raceway surface whetstones (8a, 8b), and a holder moving/turning means (28) for moving and turning the raceway surface whetstone holders, and when an object to be processed is the inner ring, presses the inner ring raceway surface whetstone against an inner ring raceway surface, and when the object to be processed is the outer ring, presses the outer ring raceway surface whetstone against an outer ring raceway surface, at which time the inner and outer ring raceway surface whetstones traverse while being oscillated.
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