

Small, metal gear motor with M3 threaded shaft, approx. 55 mm long. The recommended operating voltage of the motor is 6 V and at this voltage it achieves a speed of 50 RPM and a maximum torque of 1,8 kg * cm, consuming a current from 0.055 A to 0.58 A.
The recommended supply voltage for the motors is 6 V, but the motors operate without problems in the range from 3 V to 9 V. It is possible to supply the motor with higher voltage, but it reduces the service life of the motor.
All N20M engines have the same dimensions. The metal gear housing has two tapped holes for M1.6 bolts (1.6mm diameter, 0.35mm pitch). The engines weigh approx. 15 g.
![]() |
Dimensions of N20M micromotors (units in mm). |
---|
Our offer includes N20M engines with gear ratios from 50: 1 to 200: 1.
Gear ratio | Version | Voltage | Rotation speed | max. torque | min. current | max. current | Link |
50:1 | MP | 6 V | 300 RPM | 0,4 kg*cm | 55 mA | 0,58 A | LINK |
100:1 | MP | 6 V | 200 RPM | 0,7 kg*cm | 55 mA | 0,58 A | LINK |
150:1 | MP | 6 V | 100 RPM | 1,1 kg*cm | 55 mA | 0,58 A | LINK |
200:1 | MP | 6 V | 60 RPM | 1,4 kg*cm | 55 mA | 0,58 A | LINK |
250:1 | MP | 6 V | 50 RPM | 1,8 kg*cm | 55 mA | 0,58 A | LINK |
298:1 | MP | 6 V | 30 RPM | 2,1 kg*cm | 55 mA | 0,58 A | LINK |
It is not possible to control the motors directly from the microcontroller ports due to the high power consumption. This problem is solved by the motor drivers. Thanks to the controllers, it is possible not only to turn on and only the motors, but also to control their speed and direction of rotation.
Our offer includes a number of drivers for one or two motors. The drivers are available in the form of modules, shield extensions for Arduino and hat extensions for Raspberry Pi.
![]() |
![]() |
![]() |
DC motor controller with DRV8838 Pololu system | Shield Arduino with dual driver for DC motors with A4990 chip | Dual driver for DC motors with the DRV8835 chip |
Current sensors measure how much current the motors are consuming at a given moment, which allows to determine the load on the motors. Our offer includes sensors with measuring ranges from ± 5 to ± 75.
![]() |
![]() |
![]() |
Current sensor module 0-5A with ACS712-05 chip | Current sensor module ± 5A with ACS714 chip | Current sensor module ± 15.5A with ACS711EX system |
Data sheet
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Small motor with metal gear and encoder, rotation speed 2000 RPM, operating voltage 6 V. GA46-N20E-0051
No product available!
Miniature MP electric motor (6 VDC / 40 mA) in a metal casing with a 30: 1 gearbox, with a half shaft D with a diameter of 3 mm.
No product available!
Small metal gear motor, 300 RPM speed, 6V operating voltage. GA12-N20-0016
No product available!
A small, high power motor with a 250:1 metal gear, 6 V operating voltage, 0.07 A to 1.6 A power consumption, 120 RPM, maximum torque of 3.4 kg*cm and a double-sided shaft. Pololu 2217
No product available!
Pololu high power miniature motor with carbon brushes. 100:1 gear motor, shaft speed is 330 rpm, torque 1.3 kg*cm. Pololu 3041
Small metal gear motor, 50 RPM speed, 3V operating voltage. GA12-N20-0001
No product available!
A small, high power motor with 210: 1 metal gear, 6 V operating voltage, 0.1 A to 1.5 A power consumption, 160 RPM speed, maximum torque of 2.8 kg * cm and carbon brushes with increased durability. Pololu 3067
No product available!
Small metal gear motor, 50 RPM speed, 12V operating voltage. GA12-N20-0021
No product available!
Small metal gear motor, 1000 RPM speed, 3V operating voltage. GA12-N20-0009
A small, high-power motor with a 30:1 metal gear, 12 V operating voltage, 0.06 A to 0.75 A power consumption, 1100 RPM speed, maximum torque of 0.39 kg*cm and carbon brushes with increased durability. Pololu 3038
No product available!
15:1 Micro Metal Gearmotor HP with Extended Motor Shaft
DC Micro motor module with metal gear with a gear ratio of 75:1. The motor is connected to the board containing the driver. DFRobot DFR0399
Small metal gear motor, 300 RPM speed, 12V operating voltage. GA12-N20-0025
No product available!
No product available!
A small, powerful motor with a 250: 1 metal gear, 12 V operating voltage, power consumption from 0.06 A to 0.75 A, speed 130 RPM, maximum torque of 3 kg * cm and carbon brushes with increased durability. Pololu 3044
No product available!
No product available!
A small motor with a metal gear ending with a shaft with M3 thread, rotation speed 50 RPM, operating voltage 6 V. GA1036-N20M-0053