In this detailed technical video, the creator from Gaius Garage performs a comprehensive teardown of a QS138 90H electric motor that was previously damaged by fire. The video meticulously documents the step-by-step disassembly process, revealing the intricate internal components and design of the motor. Starting with removing external components like the bolt, sprocket, and front/back faces, the creator systematically exposes the motor’s core elements including the rotor, stator, hall sensors, and coil windings. Throughout the teardown, technical details are shared, such as the stator’s 50 coil turns, wire diameter of approximately 0.5mm (24 AWG), and phase wire composition. The analysis provides insights into the motor’s construction, highlighting its mechanical and electrical design, while also examining the fire-induced damage. By methodically breaking down each component, the video offers a rare, in-depth look at the inner workings of an electric motor, providing valuable technical information for enthusiasts, engineers, and those interested in electric vehicle or DIY technology. The creator’s careful documentation and technical commentary transform a simple motor teardown into an educational exploration of electric motor design and potential failure modes.
