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250:1 Micro Metal Gearmotor HP 6V 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 | |
|---|---|---|---|
| HP 6V: high-power 6V with precious metal brushes | 248.98:1 with brass plates | encoder-compatible (extended motor shaft) | |
| voltage | no-load performance | stall extrapolation* |
|---|---|---|
| 6 V | 120 RPM, 100 mA | 3.4 kg⋅cm (47 oz⋅in), 1.6 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 6V High-Power (HP) Micro Metal Gearmotors or
Micro Metal Gearmotors with Extended Motor Shafts.
| Description | Specs (16) | Pictures (17) | Resources (3) | FAQs (2) | On the blog (0) | Distributors (0) |
|---|
Dimensions
| Size: | 10 × 12 × 25 mm1 |
|---|---|
| Weight: | 9.5 g |
| Shaft diameter: | 3 mm2 |
General specifications
| Gear ratio: | 248.98:1 |
|---|---|
| No-load speed @ 6V: | 120 rpm3 |
| No-load current @ 6V: | 0.10 A4 |
| Stall current @ 6V: | 1.6 A5 |
| Stall torque @ 6V: | 3.4 kg·cm5 |
| Max output power @ 6V: | 1.1 W |
| Encoder: | encoder-compatible (extended motor shaft) |
| Motor type: | 1.6A stall @ 6V (HP 6V) |
Performance at maximum efficiency
| Max efficiency @ 6V: | 32 % |
|---|---|
| Speed at max efficiency: | 100 rpm |
| Torque at max efficiency: | 0.55 kg·cm |
| Current at max efficiency: | 0.30 A |
| Output power at max efficiency: | 0.59 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 is a theoretical value; stalling the gearbox output shaft could damage the gearbox.





























