What kind of weird motor winding is this?

[BrianHG]

Ok, I was watching this motor stator winding machine youtube video and at the end, this weird type of stator winding appeared.  It obviously looks like a pancake motor, but, it has an inner set of coils, then an outer set closer to the edge.  What in the world is this?  It's almost like it is being designed for 2 different RPMs, or torque, or, what kind of VFD would this motor require?  This is so off the world to me and unexpected...

https://youtu.be/C6qhP6mO2EM?t=622

Can anyone say how this motor would work or be driven?
My guess is a weird 2x2 phase system like a gigantic stepper motor, but, wouldn't part of the drive be less efficient than the other?

[T3sl4co1l]

Hmm, two phase motor?  Multispeed, could be?  Where else do I... ah, yes!
https://www.google.com/search?q=ceiling+fan+winding&tbm=isch
Multispeed, slow (lots of poles), low power, most often box and ceiling fans.

Should be a shaded pole on there (later step?), or it's using the difference in resistance of the windings, or there's a run capacitor (split phase type).

Tim

[BrianHG]

Hmm, two phase motor?  Multispeed, could be?  Where else do I... ah, yes!
https://www.google.com/search?q=ceiling+fan+winding&tbm=isch
Multispeed, slow (lots of poles), low power, most often box and ceiling fans.

Should be a shaded pole on there (later step?), or it's using the difference in resistance of the windings, or there's a run capacitor (split phase type).

Tim

Thankyou Tim.  You have found the one type of motor I have never torn apart as a kid or adult.  I thought it was weird that the super high number of turns all connected in series made for a high voltage motor which would also allow slip without overheating at 120v or 240v.  I should have figured a variable speed fan motor, but my lack of imagination on where such a pancake motor was used eluded me.