The micro plastic gearmotor’s output shaft is compatible with our 14 mm wheels. We don’t have any brackets for this gearmotor, 
and it does not possess any installation holes, but its compact size makes it simple to fasten with tape or glue. Additionally, since this gearmotor is Micro Planetary Gear Motor definitely almost the same size as a 1/4″ fuse, it can 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 is flattened by 0.5 mm. The “D” portion of the shaft is usually 2.5 mm long. The engine steps 6 mm in diameter and 9 mm long, and the gearbox duration, labeled “L” in the diagram below, depends on the gear ratio. The 26:1 gearbox is definitely 7.1 mm long, as the 136:1 option measures 9.4 mm. The electric motor leads include their ideas pre-stripped and extend approximately 2 cm (0.8″) from the back of the motor.
Gearmotor dimensions
Since the gearmotor’s output shaft is nylon, there can be small variances in the diameter from unit to unit. These variations might cause press-match attachments like our 14 mm wheel to match loosely occasionally. If you experience a loose fitting, you could attempt swapping wheels or using a small dab of glue to help contain the wheel on.