Pololu 1516 - 120:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output, Extended Motor Shaft
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  • Pololu 1516 - 120:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output, Extended Motor Shaft
  • Pololu 1516 - 120:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output, Extended Motor Shaft
  • Pololu mały silnik z plastikową przekładnią 120:1 i 3mm obustronnym wałem
ID: 561580
5906623487752
zł44.32
Tax included

zł36.03 tax excl.

This compact, inexpensive plastic gearmotor (brushed DC motor with a 120:1 reduction gearbox) is well suited for use in small robots. While intended for operation at 4.5 V, it should run comfortably in the 3 V to 6 V range.

24h
Available
Available quantity: 1
Kamami is the official distributor of electronic modules and Pololu robotic parts. All products of this brand in our offer are original and come directly from the manufacturer.
 

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14 days for return

Each consumer can return the purchased goods within 14 days

Overview:

These brushed DC gearmotors are compact and affordable — perfect for building a quick, miniature robot. They are intended for use at 4.5 V, though in general, these kinds of motors can run at voltages above and below this nominal voltage, so they should operate comfortably in the 3 V to 6 V range (rotation can start at voltages as low as 0.5 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor. The plastic gearbox is protected by a built-in safety clutch that will typically slip before the gear teeth can shear (typically when the load exceeds around 25 oz-in, or 2 kg-cm).

The mini plastic gearmotor family offers two output shaft orientations relative to the motor shaft (offset and 90°), two motor options (normal and high-power, or HP for short), and two gearbox options (120:1 and 180:1). The 120:1 versions are white and the 180:1 versions are yellow.

Some versions of these gearmotors are also available with an additional 1.5 mm-diameter output shaft that protrudes from the rear of the motor. This 5 mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add an encoder, such as our magnetic encoder for mini plastic gearmotors, to provide motor speed or position feedback:

Please see the mini plastic gearmotor comparison table for detailed specifications of all our mini plastic gearmotors. This dynamically-sortable table can help you find the gearmotor that offers the best blend of speed, torque, and current-draw for your particular application. A more basic comparison table is available below:

Motor TypeStall
Current
@ 4.5 V
No-Load
Speed
@ 4.5 V
Stall Torque
@ 4.5 V


90° output


90° output + motor shaft


offset output


offset output + motor shaft
high-power
(HP)
1250 mA 150 RPM 25 oz-in 120:1 mini HP 120:1 mini HP 120:1 mini HP 120:1 mini HP
low-power 800 mA 120 RPM 20 oz-in 120:1 mini 120:1 mini 120:1 mini 120:1 mini
80 RPM 30 oz-in 180:1 mini 180:1 mini

Note: The stall torque values listed are approximate, and the built-in safety clutch might start slipping at lower torques.

The gearmotors in the table above all have a 3 mm diameter D-shaft output. These shafts are just like the ones on our micro metal gearmotors and are compatible with many Pololu wheels and our 3 mm universal mounting hubs. We also carry two low-power, 120:1 mini plastic gearmotors with 2 mm diameter spline outputs: 90° 2mm spline output and offset 2mm spline output. These gearmotors all work with our wide and tall mounting brackets for mini plastic gearmotors.

Details for item #1516:

This item has a low-power motor (800 mA stall current), a 120:1 gearbox, and a 3 mm diameter “D”-shaped output shaft that is offset from but parallel to the motor shaft. The 1.5 mm diameter motor shaft extends approximately 5 mm past the base of the motor. See the dimension diagram (69k pdf) of this gearmotor for more information.

Dimensions:

Size: 36.5 x 20 x 27.4 mm1
Weight: 19 g
Shaft diameter: 3 mm2

General specifications:

Shaft type: offset 3mm D
Typical operating voltage: 4.5 V
Gear ratio: 120:1
Free-run speed @ 4.5V: 120 rpm
Free-run current @ 4.5V: 80 mA
Stall current @ 4.5V: 800 mA
Stall torque @ 4.5V: 20 oz·in3
Extended motor shaft?: Y

Notes:

1 See drawing for detailed dimensions.
2 D shaft.
3 Note: the gearbox's built-in clutch might start slipping at a lower torque.
561580

Data sheet

DC motor power
Other
Gear material
Plastic
Gear ratio
120:1
Rotation speed
120RPM
Shaft diameter
3 mm
Shaft shape
D
Obustronny wał silnika
Tak
Power supply voltage
4.5V

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