This gear-reduction starter (left) is a lightweight drop-in replacement for the older starter that failed. By spinning the armature faster and reducing its output speed with a planetary gearbox, it's ...

Electric motors can seem very mysterious! How do they use electricity to start rotating? Let's break it down step by step to understand how it works. Topics covered in this video: circuits, current, ...

An armature for a motor or generator. Steel axle on which is mounted a web-type cylinder made with two red fiber (?) insulator frames wrapped with insulated thin copper wires. Eight bundled turn of ...