| 摘要 |
<p>The reduction unit is constituted by a sun gear (2) which is integral with the driving shaft (1) and equipped at the two ends with two identical toothings (3, 4) which mesh with three free planetary gears (7) which in turn mesh with the fixed (10) and rotary (11) internal ring gears; between these ring gears there is a difference of 3 teeth. <IMAGE></p> |
