Is the magnetic center line of a sliding bearing motor at a fixed position?
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As the title suggests, for a 1000KW motor equipped with sliding bearings, should the magnetic center line remain in a fixed position after the motor starts up? Is it normal to move in a small range near a fixed position? Thank you!
When the coupling is disconnected, the shaft moves back and forth during motor startup in search of the magnetic center line; once operation stabilizes, it generally stops moving in this manner.
The magnetic center line is set at the time the motor leaves the factory; slight movement is not a problem – it refers to the position where the magnetic field lines are perpendicular to the rotor
There will be slight fluctuations, which is normal. Therefore, the magnetic centerline mark on the motor is a range, not a single line.
After operation, there is generally no shifting; could it be that the magnetic center line and the position of the coupling have not been adjusted properly?