| 摘要 |
The unit has a cylindrical base body (22) extending along a longitudinal axis (23) and including two ends (24, 25). The body has an inside drive unit (32) for a positioning tool and an open retainer to the end (25) that is attached at the drive unit in the direction of the end (25) and is provided with a load drive unit (34). A thread-free section (31) has an axial extension (E) that is larger than an axial extension (F) of the inside drive unit that is arranged in an area of the section. |
