The micro plastic gearmotor’s output shaft is compatible with our 14 mm wheels. We don’t have any brackets because of this gearmotor, and it does not possess any installation holes, but its compact size makes it easy to fasten with tape or glue. Additionally, since this gearmotor is certainly almost the same size as a 1/4″ fuse, it can be mounted using standard 1/4″ (6 mm) fuse clips.

Motor accessories

The next 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” part of the shaft can be 2.5 mm long. The engine procedures 6 mm in diameter and 9 mm long, and the gearbox length, labeled “L” in the diagram below, depends upon the gear ratio. The 26:1 gearbox is usually 7.1 mm long, while the 136:1 option steps 9.4 mm. The engine leads include their tips pre-stripped and extend approximately 2 cm (0.8″) from the back of the motor.

Gearmotor dimensions

Because the gearmotor’s output shaft is nylon, there can be small variances in the diameter from unit to unit. These variations might cause press-fit Micro Planetary Gear Motor 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.