Basic electric motor vibration analysis takes
place in 3 planes with respect to the
motor. Axial plane energy is energy transmitted
centrally through the center of the motor
shaft. Example: Pull and push the shaft in and
out of the motor. Vertical plane energy is
transmitted vertically, and perpendicular to the
axial plane. Example: Push and pull the motor
shaft up and down. Horizontal plane energy is
transmitted horizontally, and perpendicular
to the axial plane. Example: Push and pull the
motor shaft from side to side. Vibration
measured in these 3 planes, is typically
quantified by frequency,
amplitude, displacement, and acceleration.