Wave spring is one of the parts of the motor, which has certain influence on the vibration and noise of the motor, the motor 
has more influence on the axial displacement.
Because of existence of radial clearance of bearing, motor rotor will be subject to an axial electromagnetic force, resulting in the vibration and noise of axial motor. The solution is applied to axial pressure on motor bearing, to adjust to the radial clearance of bearing, provide a resistance to the axial electromagnetic force of rotor bearing, thus pre pressure waveform spring im
has more influence on the axial displacement.
Because of existence of radial clearance of bearing, motor rotor will be subject to an axial electromagnetic force, resulting in the vibration and noise of axial motor. The solution is applied to axial pressure on motor bearing, to adjust to the radial clearance of bearing, provide a resistance to the axial electromagnetic force of rotor bearing, thus pre pressure waveform spring im
proper selection, the effect is not good, even the noise.
When the pre pressure is too small, it has larger bearing radial clearance, can not balance the axial force of motor rotor bearing, axial movement still exists, reflect the axial movement of the low frequency, cycle hum will not be reduced.
When the pressure is too large, the radial internal clearance of the bearing is smaller or even disappear, affecting the normal use of bearings, bearing operation is not flexible, the motor sends high-frequency screams, causing motor noise is very big, even the bearing life expectancy.
