The micro plastic gearmotor’s output shaft works with with our 14 mm wheels. We don’t have any brackets for this gearmotor, and it generally does not have any installation holes, but its small size makes it simple to fasten with tape or glue. Additionally, 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.
Motor accessories
The next diagram shows the micro plastic gearmotor dimensions in mm. The planetary gearbox includes a D-shaped plastic result shaft, which is 2 mm in diameter with a section that’s flattened by 0.5 mm. The “D” portion of the shaft is usually 2.5 mm long. The electric motor procedures 6 mm in diameter and 9 mm in length, and the gearbox duration, labeled “L” in the diagram below, depends upon the gear ratio. The 26:1 gearbox is certainly 7.1 mm long, as the 136:1 option actions 9.4 mm. The electric motor leads include their guidelines pre-stripped and extend Micro Planetary Gear Motor 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-suit attachments like our 14 mm wheel to fit 
loosely occasionally. If you experience a loose fit, you could try swapping tires or using a small dab of glue to help contain the wheel on.