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31:1 Metal Gearmotor 20Dx41L mm 6V with Extended Motor Shaft
These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 6V brushed DC motor combined with a 31.25:1 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 6 V: 450 RPM and 170 mA with no load, 28 oz-in (2.0 kg-cm) and 2.9 A at stall.
Alternatives available with variations in these parameter(s): gear ratio motor type extended motor shaft? Select variant…
Compare all products in 6V Precious Metal Brush 20D Gearmotors.
| Description | Specs (10) | Pictures (14) | Resources (3) | FAQs (3) | On the blog (0) | Distributors (0) |
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Dimensions
| Size: | 20D × 41L mm |
|---|---|
| Weight: | 43 g |
| Shaft diameter: | 4 mm |
General specifications
| Gear ratio: | 31.25:1 |
|---|---|
| No-load speed @ 6V: | 450 rpm |
| No-load current @ 6V: | 170 mA |
| Stall current @ 6V: | 2.9 A1 |
| Stall torque @ 6V: | 28 oz·in1 |
| Extended motor shaft?: | Y |
| Motor type: | 2.9A stall @ 6V |
Notes:
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BF25C167: Get 39% off one or more items from category 20D Metal Gearmotors (limit 6 per item). This offer is valid from 24 Nov 2025 to 01 Dec 2025.
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