First of all, there must be a conduction mechanism. Because the engine speed is high and the torque is small, there must be a transmission mechanism to match the two through a suitable transmission ratio, generally according to the rated speed of the engine and the highest speed of the Ferris wheel.
Secondly, there must be a clutch, otherwise the engine with ferris wheel will not start.
Finally, the engine should have the functions of full speed adjustment, overspeed protection and emergency stop.