PURPOSE: To realize small step angle and large resolution by uniting two rotary motors so that the directions of rotary shafts may be the same, thereby driving each linear motor separately.

CONSTITUTION: For example, in a hybrid type object, it comprises a first rotary pulse motor 1, which has a first step angle θ1, and a second rotary pulse motor 2, which has a second step angle θ2 a little different from the first step angle, and the first rotary pulse motor 1 and the second rotary pulse motor 2 have a common shaft. Moreover, each linear motor of this complex rotary motor is driven separately, and is rotated in the reverse direction to each other or rotated in the same direction, or only one hand is rotated.