A motor comprises: a first housing; a stator which is arranged in the first housing and on which a coil is wound; a rotor arranged in the stator; a shaft arranged at the center of the rotor; a second housing arranged on the upper portion of the first housing; and a router which is arranged on the stator and has the shaft arranged at the center, wherein the router has a first hole, the first housing has a second hole facing the first hole, the second housing has a third hole facing the first hole and the second hole and screws coupled to the first hole, the second hole, and the third hole.