| 摘要 |
A double row bearing apparatus comprises a stepped shaft having larger and smaller diameter shaft portions, an inner race way groove provided on the outer peripheral surface of the larger diameter portion, balls interposed between the inner race way groove and an outer race way groove formed on an inner surface of an outer race surrounding the larger diameter portion, and a ball bearing including inner and outer races and balls interposed therebetween, wherein the ball bearing is fitted removably at its inner race over the smaller diameter portion of the stepped shaft.
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