| 摘要 |
The axis of rotation of a gear wheel (2) subjected to thermal treatment and comprising at least one intermediate crown wheel (3) and a pair of lateral tubular hubs (5) (6) arranged on opposite sides of the crown wheel (3) is restored automatically by coupling a first (5) of the hubs to a head (14) rotating about a fixed axis (15) of own rotation axis, displacing the other hub (6) in a direction transverse to the fixed axis (15) until both of the hubs (5) (6) and the crown wheel (3) are brought into positions substantially sharing the fixed axis (15) and providing on each of the hubs (5) (6) a respective centring surface (50) (51) sharing the fixed axis (15) without uncoupling the first hub (5) from the rotating head (14) and keeping the gear wheel (2) in a vertical and angularly fixed position. |
