| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact and costless rolling bearing having a relatively favorable accuracy. SOLUTION: An outer ring 2 is charged in the outer periphery of a correction mold 10 under room temperature after quenching process. Since at the time, the outer diameter of the correction mold 10 is set smaller than the inner diameter of the outer ring 2, the outer ring 2 can be easily inserted in the correction mold 10. After a plurality of outer rings 2 are charged in the correction mold 10, these outer rings 2 are heated together with the correction mold 10 at a designated temperature for a designated time for tempering. The structure of the outer ring 2 is stabilized by the tempering and at the same time, the outer ring is restricted from the internal diameter side by the correction mold 10 whose thermal expansion quantity becomes larger than the outer ring 2 according to the heating in the quenching furnace. Hence, the deformation of the outer ring 2 is corrected in imitation of the correction mold 10 and the difference of the grooved bottom diameter is regulated smaller than a designated value.
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