Abstract: A motor device secured by an engaging element includes a frame, a bushing having a first bushing engaging element at one end thereof and connected to the frame at the other end thereof having a second bushing engaging element thereof, a stator sleeved on the bushing, a printed circuit board (PCB) arranged between the stator and the frame and sleeved on the bushing, a first fixing unit cooperating with the frame to position therebetween the stator, and having a first fixing engaging element engaging with the first bushing engaging element for securing the stator to the bushing, and a second fixing unit cooperating with the frame to position therebetween the PCB, and having a second fixing engaging element engaging with the second bushing engaging element for positioning the PCB with the bushing. The motor device further includes a shafted case having a case engaging element, coaxially mounted in the frame, and having a rotatable shaft.