| 摘要 |
The invention illustrates the assembly of a fan structure comprising a transmission shaft to each end of the shaft of which a ball bearing is fitted. A spring is incorporated between the ball bearings and arranged coaxially to the rotor and the stator in order to stabilize the centrifugal force, enabling a better rotational dynamic balance about the axis of the fan. This type of assembly substantially reduces the problem of the bowing of the shaft. |
