| 摘要 |
In the case that raceway grooves of a guide rail and a slider are formed by rolling, supposing that Dg is the depth of each of the raceway grooves formed by the rolling, and Dw is a diameter of the rolling element, a ball diameter ratio (Dg/Dw), which is a value obtained by dividing the groove depth Dg by a diameter Dw of the rolling element, is set to range from 0.26 to 0.45.
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