| 摘要 |
PROBLEM TO BE SOLVED: To make an unfavorable impact flaw hardly generated in a chamfered portion of a rolling bearing, and form precise chamfering. SOLUTION: The chamfering A for inner and outer rings of the rolling bearing is carried out by grinding work after heat treatment, and the unfavorable flaw is thereby prevented from being generated on the chamfering to provide the precise and optimum chamfering A.
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