| 摘要 |
PURPOSE: Screw assembly and ball screw including thereof are provided to compensate screw-rotation axis, using connection nut, by fitting at the center of circle which screw groove of the screw is forming, thereby implement precise operation. CONSTITUTION: Bearing shaft(1) is combined to bearing(30). The bearing shaft is rotated on the bearing. Connection nut(5) connects the end part of screw(4) and the bearing shaft. The connection nut goes in valley of the screw groove. The connection nut is combined with the end part of the screw by nut combining.
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