| 摘要 |
A rack guide (G) has on its outer periphery a pair of semi- circular tube surfaces (54) and a pair of flat surfaces (55) positioned between the pair of semi-circular tube surfaces (54). The rack guide (G) also has, on its axially one end side, a concave surface (51) positioned inward relative to the pair of semi- circular tube surface (54) and the pair of flat surfaces (55). The rack guide (G) further has, on its axially the other end side, a rack guide base body (50) having a circular tube surface (52) positioned inward relative to the pair of semi-circular tube surface (54) and the pair of flat surfaces (55), and a slide element (60) fixed to the rack guide base body (50). |
