Hi amp bearing motor

[tinman]

Good paper broli-cheers.

So who here would like to have a go at showing what the magnetic fields may look like,in the pic below?-that is if there is any magnetic fields. One would think there would be,as we have two single wound coils,with high amp's passing through them on each bearing-being the inner and outer rings of the bearing.

[Low-Q]

You can easily exceed 500 A with this battery. If you clearly see that the wires want to separate, the current flow is so great that the magnetic field along one single wire are pushing or attracting the other wire out of initial position by several millimeters.


I have seen similar behaviour in spot welding equipment where two parallell wires 50mm in diameter separating with great force.



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[Low-Q]

Good paper broli-cheers.

So who here would like to have a go at showing what the magnetic fields may look like,in the pic below?-that is if there is any magnetic fields. One would think there would be,as we have two single wound coils,with high amp's passing through them on each bearing-being the inner and outer rings of the bearing.

I don't think magnetism is the reason why these bearings start to rotate. It must be due to heat expansion. There is no defined direction where the balls are moving if magnetism would be the reason - not even if the rotor have an initial spin.


When the balls heat up they expand, and want to escape the narrow space they have got as they cool down. If you're not spinning it in advance, the bearing will not start the rotation because the balls on each side is equaly heated.
However, if you spin it first, the delay in heating will cause the balls to be most expanded after the point where the wires are attached, and therfor it will continue to spin when current is applied. My 5 cents.


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