
125:1 Metal Gearmotor 20Dx44L mm 12V CB
- Manufacturer: Pololu
- Order number: EXP-R25-999
- Manufacturer part number: 3479
- country of origin: CN
- HS code: 85011099
- Weight (kg): 0.047
These small brushed DC gearmotors can deliver a lot of power for their size. This version has a... more
These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 12V brushed DC motor with long-life carbon brushes combined with a 125:1 metal spur gearbox. The gearmotor is cylindrical with a diameter of 20 mm, and the D-shaped output shaft is 4 mm in diameter and extends 18 mm from the face plate of the gearbox.
Key specs at 12 V: 110 RPM and 90 mA with no-load, 7.9 kg-cm and 1.6 A at stall. Note: the gearbox torque limit is 5 kg-cm
Specifications:
- Size: 20D × 44L mm
- Weight: 46 g
- Shaft diameter:4 mm
- Gear ratio: 125:1
- Free-run speed @ 12V: 110 rpm
- Free-run current @ 12V: 90 mA
- Stall current @ 12V: 1.6 A
- Stall torque @ 12V: 7.9 kg-cm
- Free-run speed @ 6V: 55 rpm
- Stall current @ 6V: 0.8 A
- Stall torque @ 6V: 3.95 kg-cm
- Extended motor shaft?: N
- Motor type: 1.6A stall @ 12V CB (carbon brush)
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