The micro plastic gearmotor’s output shaft works with with this 14 mm wheels. We don’t have any brackets for this gearmotor, and it does not have any installation holes, but its small size makes it simple to fasten with tape or glue. On the other hand, since this gearmotor can be nearly the same size as a 1/4″ fuse, it could be mounted using regular 1/4″ (6 mm) fuse clips.
The next diagram shows the micro plastic gearmotor Micro Planetary Gear Motor dimensions in mm. The planetary gearbox includes 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 2.5 mm long. The electric motor steps 6 mm in diameter and 9 mm in length, and the gearbox duration, labeled “L” in the diagram below, depends on the gear ratio. The 26:1 gearbox can be 7.1 mm long, as the 136:1 option steps 9.4 mm. The engine leads come with their tips pre-stripped and extend around 2 cm (0.8″) from the trunk of the motor.
Since the gearmotor’s output shaft is nylon, there may be small variances in the diameter from unit to unit. These variations might cause press-match attachments like our 14 mm wheel to fit loosely occasionally. If you experience a loose fit, you could attempt swapping wheels or using a little dab of glue to greatly help hold the wheel on.