| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a mechanical reduction gear using large-diameter and small-module gears for actualizing stable drive transmission with high accuracy while maintaining consistently proper meshing condition even in an environmental temperature change. <P>SOLUTION: The mechanical reduction gear rotates a driven shaft 3 while reducing the shaft rotating speed of a driving shaft 1 with gear meshing. The reduction ratio of a driving side gear 2 to a driven side gear 4 during meshing with each other is 1/20 or greater. Each of the driving side gear 2 and the driven side gear 4 is a helical gear whose tooth module is 0.15 or more and less than 0.3. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
