Complete Teardown of the QS138 90H Motor | The Best Cheapest Motor?

Complete disassembly the QS138 90H motor. This motor was damaged due to a fire and I decided to take it apart to have a look at the design and construction. Definitely some interesting results! Need help with your project? Book a 15-min consult: https://calendly.com/gaiusgarage/15-m... Some more stats I forgot to cover in the video: of turns in the stator coils = 50 Coil wire diameter is ~0.5mm - I think that's 24 AWG Phase wires are comprised of two coils so 100 total strands = 4 AWG Aliexpress store that sold me faulty motor AVOID https://www.aliexpress.com/store/1100... 0:00 Intro 1:06 Removing the bolt 1:30 Removing the sprocket 2:05 Inspecting the shaft & sprocket key 2:26 Removing the front face 3:30 Removing the front face bearing 3:48 Inspecting the damaged windings 4:30 Inspecting the stator design 5:42 Pole pairs disambiguation 6:15 Removing the back face 7:35 Looking at hall sensor wires 8:02 Removing the hall sensor cover 8:41 Inspecting & removing the hall sensor 9:50 Removing the back face from the bearing 10:26 Removing the back face bearing 10:40 Separating the rotor from the stator 11:30 Inspecting the rotor design 12:40 Inspecting the coil windings from the rear side 13:17 Disassembling the phase wires pass-through 14:00 Closer inspection of coil windings 16:07 Cutting the coil windings for removal from the stator 17:17 Separating the coil windings from the stator 18:20 Closer look at bare stator and damage from fire 20:13 Thermistor removal 21:02 Summary -- Music from Uppbeat (free for Creators!): Neon Signs https://uppbeat.io/t/simon-folwar/neo... License code: 36BZJZZXXFLFSLKS Autumn https://uppbeat.io/t/fass/autumn License code: 4WREJLYJCSDBQOZY Hypnotic https://uppbeat.io/t/92elm/hypnotic License code: WNIHGNUQAFFEGWU7