The tin iron is strong magnetic, the outer rotor, the mid -empty shaft φ6.5mm, the maqnetic rinq φ5.4, can be across Can be used to learn DC brushless motor control, such as FOC, SVPWM, square wave Banding radial magnetic ring, encoder has been assembled with copper columns and screwsMotor with 3P MX1.25 line, encoder with 4P pH2.0 rotor line. Support FOC control, you can use the SimpleFoc library, DENGFOC library, support 0Drive (voltage control 12V), and also support the opening control. It can make preferential motors such as small robots, self -balanced cars, gimbal, drones, wheel -toot robots, KNOD smart knobs, lidar, etc. The motor is a copper -core stator, shell aluminum alloy, black paint, rotating wireless toothless setting, high and low speed (FOC control self-test)Coder supports , PWM/Simulation Communication, Weight: 0.14770971554 Pounds, Manufacturer: Aboiled