The micro plastic gearmotor’s output shaft is compatible with our 14 mm wheels. We do not have any brackets because of this gearmotor, and it generally does not possess any installation holes, but its compact size makes it easy to fasten with tape or glue. Alternatively, since this gearmotor is certainly almost the same size as a 1/4″ fuse, it could be mounted using regular 1/4″ (6 mm) fuse clips.
Motor accessories
The following 
diagram shows the micro plastic gearmotor dimensions in mm. The planetary gearbox has a D-shaped plastic output shaft, which is 2 mm in diameter with a section that’s flattened by 0.5 mm. The “D” portion of the shaft is certainly 2.5 mm long. The electric motor steps 6 mm in diameter and 9 mm in length, and the gearbox size, labeled “L” in the diagram below, depends on the gear ratio. The 26:1 gearbox can be 7.1 mm long, while the 136:1 option steps 9.4 mm. The motor leads include their ideas pre-stripped and extend Micro Planetary Gear Motor around 2 cm (0.8″) from the back of the motor.
Gearmotor dimensions
Since the gearmotor’s output shaft is nylon, there may be small variances in the diameter from unit to unit. These variations may cause press-suit attachments like our 14 mm wheel to match loosely occasionally. If you experience a loose fitting, you could try swapping tires or using a little dab of glue to greatly help contain the wheel on.