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172:1 Metal Gearmotor 25Dx56L mm LP 12V
This gearmotor consists of a low-power, 12 V brushed DC motor combined with a 171.79:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox. This gearmotor is also available with an integrated encoder.
voltage | no-load performance | stall extrapolation |
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12 V | 33 RPM, 50 mA | 13 kg⋅cm (180 oz⋅in), 0.9 A |
Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…
Compare all products in 12V Low-Power (LP) 25D mm Gearmotors.
Description | Specs (19) | Pictures (10) | Resources (3) | FAQs (3) | On the blog (0) | Distributors (1) |
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Dimensions
Size: | 25D x 56L mm1 |
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Weight: | 94 g |
Shaft diameter: | 4 mm2 |
General specifications
Gear ratio: | 171.79:1 |
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No-load speed @ 12V: | 33 rpm3 |
No-load current @ 12V: | 0.050 A4 |
Stall current @ 12V: | 0.90 A5 |
Stall torque @ 12V: | 13 kg·cm5 |
Max output power @ 12V: | 1.1 W |
No-load speed @ 6V: | 17 rpm6 |
Stall current @ 6V: | 0.45 A6 |
Stall torque @ 6V: | 6.5 kg·cm6 |
Motor type: | 12V, 0.9A stall (LP 12V) |
Performance at maximum efficiency
Max efficiency @ 12V: | 31 % |
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Speed at max efficiency: | 28 rpm |
Torque at max efficiency: | 1.9 kg·cm |
Current at max efficiency: | 0.14 A |
Output power at max efficiency: | 0.54 W |
General specifications
Encoders?: | N |
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Notes:
- 1
- Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals). 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
- Stalling is likely to damage the gearmotor. Stall parameters come from a theoretical extrapolation of performance at loads far from stall. As the motor heats up, as happens as it approaches an actual stall, the stall torque and current decrease.
- 6
- This motor will run at 6 V but is intended for operation at 12 V.