As the scope of application of electronic systems inautomobiles is increasingcontinuously, the application of actuators with the use of motors is also on the rise. as actuators to replace the existing mechanical operation have been applied, it has become possible to simplify the structure of the vehicle and to replace manual controlwith electronic control. To meet the demand from the market and keep pace for technical development, Hyundai Polytech is carrying out research and development ofactuators with an application inthe structure of motor and reducer.