Hand held device with built-in motor

摘要: A hand held device with built-in motor for rotational drive of small tools. The includes an outer housing consisting a larger diameter rear part which contains electric driving motor, intermediate motion transmitting means, and front in is mounted holder the tool to be driven. brushless having rotor encapsulated sealed insulating enclosure permanent magnets covered layer conducting metal stator made up multi-phase winding coils embedded molded plastic material. transmission means consists non-contacting magnetic coupling means.