Quote:
Originally Posted by What's_nitro?
FWIW, if you ever need to figure out how many poles an inrunner motor has; Remove the rotor from the can, roll it on a flat metal surface, note how many times it "sticks" in one revolution.
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Actually you can know the pole number WITHOUT OPENNING the can.

Just rotate the motor shaft, feel how many "detent" in a whole 360 degree round turn.
2-pole rotor will feel 6 detents, that is, 2 polesX 3 stator phases= 6 sticky positions.
4-pole motor will feel 12 detents, same rule, no matter it has a slotted stator or not.