| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a return tube for ball screw which permits high speed and low cost, to provide a method of manufacturing the return tube, and to provide a ball screw. <P>SOLUTION: The return tube which includes two tube pieces partitioned along the orbital direction of balls 30 and in which both ends has been curved in directions in contact with rolling grooves 11, 21 along which the balls 30 for the ball screw 1 run, and the return tube for the ball screw are provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
