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12mm Micro Gear Motor BG N20

Item number: 61001

The geared motor in the size N20 is suitable for countless projects in model construction and many other areas thanks to the smallest size and many gear variants.

Category: Motors

Nominal Voltage
Rated Speed

Available now!
14,95 €

including19% VAT., plus shipping

There are variations of this item. Please select the variation you wish.


Rated voltage: 3 V 6 V 12 V
Nominal size: 12 x 10 mm
Shaft diameter: 3 mm
Shaft shape: D-Type
Arrangement of the output shaft: Concentric
Type of Gearbox: Spur gears
Material of the gears: Metal


The geared motor in size N20 is a small geared motor suitable for countless projects in modelbuilding and many other areas. With 3 different motors or operating voltages (3V, 6V, 12V) and 11 different gear variants (1: 500 - 1: 8) it is suitable for a wide range of applications in functional model building, e.g. for truck, construction machinery, crane, ship and car models. Even in the field of robotics it finds versatile applications.

Thanks to the open metal transmission, themotor runs quietly and impresses with its long service life. As thegearbox is open, it can be easily greased. On the one-sided flattened 3mm shaft, various attachments such as gears, cardan shafts, etc. can be easily mounted. The motor is usually mounted via the two M1.6 threaded holes on the front of the gear box.

The motor itself has a size of only 15 x 12 x 10 mm, the metal gearbox is 9 x 12 x 10 mm (the same for all gearbox variants). The complete unit made of motor and gearbox measures (without shaft) approx. 25.5 x 12 x 10 mm. The exact dimensions can be taken from the drawing. The performance data of all engine / gearbox variants can be taken from the tables (these are standard values ??which, of course, can vary depending on the application).

Do not forget: we also offer a specialmotor mount which makes thismotor easy to mount!

Technical specifications

Characteristics of a particular motor-gearbox variant can be taken from the tables or the drawing.
  • Rated operating voltage: 3V, 6V, or 12V (depending on variant)
  • Transmission ratio: 1: 500, 1: 300, 1: 250, 1:50, 1: 100, 1:75, 1:50, 1:38, 1:30, 1:15, 1:8 (depending on variant)
  • Nominal speed: 15 - 4000 rpm (depending on variant)
  • Nominal Torque: 0.04 - 2.5 kg * cm (1 kg * cm = 0.0981 Nm) (depending on variant)
  • Gearbox: metal
  • Type: Brushed motor
  • Output shaft: 3 x 10 mm (2.5 mm flattened)
  • Dimensions: approx. 25.5 x 12 x 10 mm (see drawing)
  • Weight: approx. 10g

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