| 摘要 |
<p>PURPOSE:To make it possible to facilitate the adjustment of longitudinal play between a guide and a slide member, by enabling the longitudinal play on a path from a main shaft to the slide member to be removed easily at only one position. CONSTITUTION:A rotation input shaft 11 is rotatably incorporated into a cylindrical member 15 eccentrically supporting the input shaft 11, through the intermediary of a ball bearing 13 and a needle bearing 14. A main shaft 21 is rotatably incorporated in the front section 82 of a gear box, and a collar 26 and a rear end flange 27 are laid between the outer races of bearings 24, 25. The inner race of the bearing 24 is fitted on the main shaft 21, movably in the axial direction, and the outer race of the bearing 24 and the outer race of the bearing 25 are supported also movably in the axial direction. A screw hole 84 which is opened in the front of the main shaft 21 is concentrically formed in the front surface of the bear box, and an adjusting screw 28 is screwed into the hole 84.</p> |
