Question

wt is function of axle In electric motor ​

Answer 1

Conversely, many front-wheel drive cars have a solid rear beam axle. In other types of suspension systems, the axles serve only to transmit driving torque to the wheels; the position and angle of the wheel hubs is an independent function of the suspension axle

So this axle is used for rotataing motor

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Answer 2

it helps the motor to rotate perfectly.