Trying to design a motor for a learning project. Finished the math but having a lot of trouble with design questions. Can anyone give me some insight. For the rotor in this picture there is a ring magnet. Is the magnet glued on? I think it is glued onto electrical steel. 2nd question, on the inside of the rotor there is a ring that looks like a bearing or something. How does this attach to a shaft? Can you tell me if I am correct... is it just a cylinder of metal shrink fit into electrical steel? and would a shaft just be interfearance fit inside of the rotor... by hammering the shaft in or something? https://www.google.com/search?q=bldc+rotor&client=tablet-android-lenovo&prmd=sivn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiNmsr_8uzPAhWGOyYKHfv5BOoQ_AUICCgC&biw=1280&bih=800#imgdii=uJyn9-Fgwek-4M%3A%3BzN64iZalN3DUgM%3A%3BzN64iZalN3DUgM%3A&imgrc=zN64iZalN3DUgM%3A Also, does anyone know an online resource where I can learn how these things are done the right way?