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These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 56:1 metal gearbox with a 0.276"-long, 4 mm-diameter D-shaped output shaft.
Key specs at 6 V: 250 RPM and 250 mA free-run, 45 oz-in (3.3 kg-cm) and 3.3 A stall.
The 20D mm line of brushed DC gearmotors all have the same dimensions except for the length of the gearbox, and they are intended for use at 6 V. In general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 9 V range. Higher voltages could start negatively affecting the life of the motor, and lower voltages might not be practical. Four different gear ratios are available.
The gearmotor face plate has two mounting holes threaded for M2.5 screws, and you can use our custom-designed 20D mm metal gearmotor bracket (shown in the left picture below) to mount the gearmotor to your project via these mounting holes and the screws that come with the bracket.
This gearmotor has an output shaft with a diameter of 4 mm; the Pololu universal aluminum mounting hubs for 4mm shafts can be used to mount our larger Pololu wheels (60mm-, 70mm-, 80mm-, and 90mm-diameter) or custom wheels and mechanisms to the gearmotor’s output shaft (see the right picture above). Alternatively, you could use our 4mm scooter wheel adapter to mount many common scooter, skateboard, and inline skate wheels to the gearmotor’s output shaft, and you can use our 12mm hex wheel adapter to use this motor with many common hobby RC wheels. The gearbox’s output shaft also works directly with the 120mm-diameter Wild Thumper wheels.
Data sheet
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73:1 Metal Gearmotor 20Dx42L mm
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A set of two aluminium brackets for mounting Pololu 20D motors. Mounting screws are included. Pololu 1138
Digital LED voltmeter 0,28 "with measuring range 0-100 V. Module powered with 3-30V voltage.
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Digital LED voltmeter 0,28 "with measuring range 0-100 V. Module powered with 3-30V voltage.
No product available!
Multifunctional robot with 2WD chassis and controller in the form of a Raspberry Pi minicomputer. It is a universal mobile platform that can, for example, avoid obstacles or detect objects using a camera. Pimoroni PIM598
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Module with RP2040 microcontroller dedicated to matrix displays with HUB75 interface. Pimoroni PIM584
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Heat shrink tubing with tin and glue. Used for quick connection of wires
No product available!
Heat shrink tubing with tin and glue. Used for quick connection of wires
No product available!
Heat shrink tubing with tin and glue. Used for quick connection of wires
No product available!
A module with a digital barometer BMP390L dedicated to industrial applications. The system measures pressure in the range from 300 to 1250 hPa and temperature from -40℃ to 85℃. DFRobot SEN0423
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Module with a digital gas sensor MiCS-4514. It allows you to measure the concentration of CO, C2H5OH, H2, NO2, NH3 and communicates via the I2C interface. DFRobot SEN0377
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Universal power supply module working on the basis of four 18650 batteries. It offers DC outputs with voltages of 9 V, 12 V, 24 V and adjustable in the range from 1 to 20 V, as well as two USB 5 V outputs. DFRobot FIT0674
No product available!
FE2.1 is a high-performance USB 2.0 controller supporting 7 ports in High Speed (480 Mbps) mode, ideal for expanding systems with additional USB ports. The compact LQFP48 package offers power management and automatic speed detection, ensuring optimal performance in electronics and computer devices.
No product available!
Flexible adapter for microSD to SD card with a length of 25 cm. Supports all capacities and card types, including: 16 GB, 32 GB, 64 GB, 128 GB Micro SD/SDHC
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The expansion module is designed to work with the micro:bit educational board. It allows you to build an electronic piano
No product available!
Black and white e-Paper display with a diagonal of 7.5" and a resolution of 800x480 px. SPI interface. Without PCB. Waveshare 7.5inch e-Paper (G)
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Board with the WiFi Espressif ESP32-S2 module. Offers 4MB Flash and 8MB SRAM. Leads are compatible with HAT modules for Raspberry Pi Pico. Waveshare ESP32-S2-Pico
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A mini welding machine designed to connect 18650 type battery cells
No product available!
This version has a 56:1 metal gearbox with a 0.276"-long, 4 mm-diameter D-shaped output shaft. Key specs at 6 V: 250 RPM and 250 mA free-run, 45 oz-in (3.3 kg-cm) and 3.3 A stall. Pololu 1450