Pololu Metal Gearmotors » Micro Metal Gearmotors » 12V High-Power Carbon Brush (HPCB) Micro Metal Gearmotors »
50:1 Micro Metal Gearmotor HPCB 12V with Extended Motor Shaft
This is a miniature brushed DC metal gearmotor with a gearbox cross section of 10×12 mm and a 9 mm long, 3 mm diameter D-shaped gearbox output shaft.
| motor/brush type | gearbox | encoder | |
|---|---|---|---|
| HPCB 12V: high-power 12V with carbon brushes | 51.45:1 with brass plates | encoder-compatible (extended motor shaft) | |
| voltage | no-load performance | stall extrapolation* |
|---|---|---|
| 12 V | 650 RPM, 80 mA | 0.67 kg⋅cm (9.3 oz⋅in), 0.75 A |
| * Note: Stall torque and stall current specifications are theoretical values; stalls could damage the motor or gearbox. | ||
Alternatives available with variations in these parameter(s): gear ratio motor type encoder Select variant…
Compare all products in 12V High-Power Carbon Brush (HPCB) Micro Metal Gearmotors or Micro Metal Gearmotors with Extended Motor Shafts.
| Description | Specs (20) | Pictures (17) | Resources (3) | FAQs (2) | On the blog (0) |
|---|
Dimensions
| Size: | 10 × 12 × 25 mm1 |
|---|---|
| Weight: | 9.5 g |
| Shaft diameter: | 3 mm2 |
General specifications
| Gear ratio: | 51.45:1 |
|---|---|
| No-load speed @ 12V: | 650 rpm3 |
| No-load current @ 12V: | 0.08 A4 |
| Stall current @ 12V: | 0.75 A |
| Stall torque @ 12V: | 0.67 kg·cm |
| Max output power @ 12V: | 1.1 W |
| No-load speed @ 6V: | 325 rpm5 |
| Stall current @ 6V: | 0.38 A5 |
| Stall torque @ 6V: | 0.34 kg·cm5 |
| Encoder: | encoder-compatible (extended motor shaft) |
| Long-life carbon brushes?: | Y |
| Motor type: | 0.75A stall @ 12V (HPCB 12V - carbon brush) |
Performance at maximum efficiency
| Max efficiency @ 12V: | 31 % |
|---|---|
| Speed at max efficiency: | 500 rpm |
| Torque at max efficiency: | 0.15 kg·cm |
| Current at max efficiency: | 0.22 A |
| Output power at max efficiency: | 0.79 W |
Notes:
- 1
- Output shafts add 15 mm to the 26 mm length. See dimension diagram for details.
- 2
- D shaft.
- 3
- Typical; ±20%.
- 4
- Typical, ±50%; no-load current depends on internal friction, which is affected by many factors, including ambient temperature and duration of motor operation.
- 5
- This motor will run at 6 V but is intended for operation at 12 V.
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