What is the effect of stator-rotor stack pressure on motor performance?

   Stator and rotor stacking pressure on the performance of motors

    Stacking coefficient and core weight: Stacking pressure directly affects the stacking coefficient of the iron core, and insufficient pressure will lead to poor stacking and insufficient core weight, which in turn affects the motor's magnetic circuit cross-section and excitation current.

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    Electrical performance: insufficient stacking pressure may lead to iron core loosening, causing the stator core teeth to pop open, increasing the air gap magnetic flux potential, resulting in increased excitation current and stator current, reducing the power factor and motor efficiency.
    Temperature rise and heat dissipation: the core stacking pressure is not tight will lead to motor temperature rise, because the loose core will affect the heat conduction, so that the heat generated by the motor operation is not easy to disseminate.

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     Vibration and noise: insufficient stacking pressure may also cause motor vibration and noise increase, affecting the stability of motor operation and service life.
     In summary, the stator and rotor stacking pressure on the electrical performance of the motor, temperature rise, heat dissipation and vibration noise and other aspects have an important impact, therefore, in the motor manufacturing process should be strictly controlled stacking pressure

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