| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a bearing device, which restrains the occurrence of grinding burning, improves stability in quality, and also improves product load capacity. SOLUTION: The manufacturing method of the bearing device is provided for grinding ball transfer grooves 5 and 6 of an external member 4 of the bearing device, by rotating a grinding wheel member 3 having projecting grinding surface parts 1 and 2 around its axis. The ball transfer grooves 5 and 6 are ground by obliquely notching by the projecting grinding surface parts 1 and 2 in the direction forming a predetermined inclination to the axis of the external member 4. COPYRIGHT: (C)2008,JPO&INPIT
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