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120:1 Mini Plastic Gearmotor HP, Offset 3mm D-Shaft Output, Extended Motor Shaft
This compact, inexpensive plastic gearmotor (high-power 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. The gearbox has a 9.7mm-long, 3 mm-diameter D-shaped output shaft that is offset from but parallel to the motor shaft, and a built-in safety clutch helps protect the gears from excessive loads. This version also has a 5×1.5 mm extended motor shaft.
Key specifications:
| voltage | no-load performance | stall extrapolation |
|---|---|---|
| 4.5 V | 150 RPM, 130 mA | 1.8 kg⋅cm (25 oz⋅in), 1.25 A |
Alternatives available with variations in these parameter(s): shaft type no-load speed @ 4.5V extended motor shaft? Select variant…
Compare all products in Pololu Plastic Gearmotors or Mini Plastic Gearmotors or Romi Chassis Components.
| Description | Specs (11) | Pictures (13) | Resources (7) | FAQs (1) | On the blog (2) | Distributors (46) |
|---|
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 |
| No-load speed @ 4.5V: | 150 rpm |
| No-load current @ 4.5V: | 130 mA |
| Stall current @ 4.5V: | 1250 mA |
| Stall torque @ 4.5V: | 25 oz·in3 |
| Extended motor shaft?: | Y |
Notes:
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