I wind nearly all my own EDF Motors all Out runner.
No real problems with bearings , but I find only a small number of ESC's can handle the High RPM .
Largest so far is a double 22mm Stator for the 75mm GWS Fan, the Smallest 14mm dia for the GWS 30 60Grms thrust at 3A
The best!! is a 18mm dia wound hot for the GWS 40 fan, 200 grms at 9A on 3 cells
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