Dear customers,
We have summer vacation from 15 Aug 2022 to 19 Aug 2022
The orders during the vacation will be processed on 22 Aug 2022. Please plan ahead.
Yours sincerely
EXP-Tech team
We have summer vacation from 15 Aug 2022 to 19 Aug 2022
The orders during the vacation will be processed on 22 Aug 2022. Please plan ahead.
Yours sincerely
EXP-Tech team

391:1 Metal Gearmotor 20Dx46L mm 12V CB
- Manufacturer: Pololu
- Order number: EXP-R25-978
- Manufacturer part number: 3496
- country of origin: CN
- HS code: 85011091
- 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 390.6:1 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. This version also has a 6 × 2 mm extended motor shaft.
Key specs at 12 V: 36 RPM and 90 mA with no-load, 290 oz-in (21 kg-cm) and 1.6 A at stall. Note: the gearbox torque limit is 70 oz-in (5 kg-cm).
Specifications:
- Size: 20D × 46L mm
- Weight: 47 g
- Shaft diameter: 4 mm
- Gear ratio: 390.625:1
- Free-run speed @ 12V: 36 rpm
- Free-run current @ 12V: 90 mA
- Stall current @ 12V: 1.6 A
- Stall torque @ 12V: 21 kg-cm
- Free-run speed @ 6V: 18 rpm
- Stall current @ 6V: 0.8 A
- Stall torque @ 6V: 10.5 kg-cm
- Extended motor shaft?: Y
- Motor type: 1.6A stall @ 12V CB (carbon brush)
Rated Voltage: | 12V |
gear ratio: | 391:01:00 |
Power Range: | LP |
extended motor shaft: | Yes |
shaft diameter: | 4mm |
Encoder: | No |
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