Manufacturing aspects of small brushless DC motors

In the recent years brushless DC motors have penetrated into several new application areas. The number of pieces being produced has increased considerably. The average number of pieces of a specific design being produced for a small motor is considerably larger than that for a large motor. Due to this difference in number of pieces and typical dimensions different technologies are used at some stages of the manufacturing process. Here, the manufacturing of small brushless DC motors of the slotted radial field type is considered by the authors