1163 - 73:1 Metal Gearmotor 20Dx42L mm
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These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 73:1 metal gearbox with a 0.276"-long, 4 mm-diameter D-shaped output shaft.
Key specs at 6 V: 180 RPM and 250 mA free-run, 60 oz-in (4.3 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.
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.
Dimensions
| Size: | 20D x 44L mm |
|---|---|
| Weight: | 1.52 oz |
| Shaft diameter: | 4 mm |
General specifications
| Gear ratio: | 73:1 |
|---|---|
| Free-run speed @ 6V: | 180 rpm |
| Free-run current @ 6V: | 250 mA |
| Stall current @ 6V: | 3300 mA |
| Stall torque @ 6V: | 60 oz·in |