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The recommended supply voltage for the motors is 12 V, but the motors operate without problems in the range from 9 V to 15 V. It is possible to supply the motor with higher voltage, but it reduces the service life of the motor.
All N20W 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.
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| Dimensions of N20W micromotors (units in mm). | 
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Our offer includes N20W 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 | 12 V | 381 RPM | 0,4 kg*cm | 55 mA | 0,58 A | LINK | 
| 150:1 | MP | 12 V | 136 RPM | 1,1 kg*cm | 55 mA | 0,58 A | LINK | 
| 200:1 | MP | 12 V | 68 RPM | 1,5 kg*cm | 55 mA | 0,58 A | LINK | 
Our offer includes wheels suitable for motors with a shaft with a diameter of 3 mm and the shape of the letter "D". There are wheels of various diameters from 32 mm to 90 mm in many colors.
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| Pololu 32x7mm wheels (black) | Pololu 32x7mm wheels (white) | Pololu 40x7mm wheels (red) | 
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| A list of Pololu wheels with different diameters available in the following colors: white, blue, red, yellow and black | 
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.
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| 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.
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| 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
250:1 Micro Metal Gearmotor
Small, high power motor with 50:1 metal gear, 12 V operating voltage, 0.06 A to 0.75 A power consumption, 650 RPM, maximum torque 0.67 kg*cm, carbon brushes and double-sided shaft. Pololu 3050
 No product available!
Small motor with metal gear and encoder, rotation speed 150 RPM, operating voltage 6 V. GA46-N20E-0046
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10:1 Micro Metal Gearmotor HP with Extended Motor Shaft
 No product available!
Small metal gear motor, rotation speed 68 RPM, operating voltage 6 V. GA1024-N20F-0036
A small, low-power motor with a 210:1 metal gear, 6 V operating voltage, 0.02 A to 0.36 A current consumption, 65 RPM, a maximum torque of 1.6 kg*cm and a double-sided shaft. Pololu 2206
 No product available!
DC Micro motor module with metal gear with a gear ratio of 50:1. The motor is connected to the board containing the driver. DFRobot DFR0429
 No product available!
Small motor with metal gear and encoder, rotation speed 200 RPM, operating voltage 6 V. GA46-N20E-0047
 No product available!
Pololu high power miniature motor with carbon brushes. 150:1 gear motor, shaft speed 220 rpm, torque 1,8kg*cm. The motor has an extended shaft, which makes it easy to attach the encoder. Pololu 3053
100:1 Micro Metal Gearmotor with Extended Motor Shaft
Small metal gear motor, rotation speed 381 RPM, operating voltage 6 V. GA1024-N20F-0038
A small, low-power motor with a 5:1 metal gear, 6 V operating voltage, 0.02 A to 0.36 A power consumption, 2500 RPM speed and a maximum torque of 0.05 kg * cm. Pololu 1100
15:1 Micro Metal Gearmotor. Pololu 4780
A small, high power motor with 380: 1 metal gear, 6 V operating voltage, 0.07 A to 1.6 A current consumption, 84 RPM, maximum torque 5.5 kg * cm and double-sided shaft. Pololu 4795
 No product available!
Small metal gear motor, 100 RPM speed, 6V operating voltage. GA12-N20-0014
 
                    Small metal gear motor, rotation speed 68 RPM, operating voltage 12 V. GA1218-N20W-0039