Effects Of Axial Currents On Bearings Of The Motor's Ancillary Equipment

Effects of Axial Currents on Bearings of the Motor's Ancillary Equipment

On the issue of motor shaft current, we have analyzed and discussed from different angles. In the process of analysis and discussion, we are basically the motor as a relatively isolated individual, in the actual application, the motor supporting equipment have bearings, if the motor shaft current, whether the bearings of the equipment will have an adverse effect?

Motor and equipment docking coaxial connection, equipment bearings and motor bearings are basically in the same state, that is, encountered the same chance of axial current infringement, is the motor bearings or equipment bearings are damaged, mainly depends on the lubrication status of the bearings, lubrication effect of relatively poor bearings are damaged first, and then will continue to attack other bearings. From the theoretical analysis, when the motor bearings and equipment bearing lubrication status is comparable, the motor and equipment bearing system is equivalent to parallel line relationship, there is a certain shunt effect; when the motor using shaft current preventive measures, the same will play an effective role in the protection of equipment bearings.

When the motor and equipment using belt drive, due to the relative independence of the motor and equipment operation, the motor's shaft current theoretically does not affect the equipment bearings. The equipment itself is in a passive non-electrified running state, so the general equipment bearings will not have shaft current. Therefore, from the motor and equipment transmission principle analysis, as long as the motor body to take the necessary measures to avoid the shaft current, can ensure the safety of equipment operation.