Dummy motor shaft- 6mm
The dummy motor shaft is prevalent and used in the small robots to support the chassis without any power transmission. This dummy shaft is similar to the DC geared motor in aesthetics. The shaft could be easily fastened using the nut that runs through the shaft. The washer supports the shaft from oozing out.
The body of the dummy shaft is made of plastic and it supports the shaft with the help of a washer and stays stiff when it is fastened to the clamp. The dummy shaft is compatible with the normal DC geared motor.