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73:1 Metal Gearmotor 20Dx42L mm (Short Output 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 73:1 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 10.7 mm from the face plate of the gearbox.
Key specs at 6 V: 180 RPM and 250 mA free-run, 60 oz-in (4.3 kg-cm) and 3.2 A stall.
Note: This gearmotor is being replaced by a new version with a slightly different gear ratio and a longer output shaft (the motor portion is unchanged).  This short-shaft version will be discontinued when the remaining stock is gone.
Alternatives available with variations in these parameter(s): gear ratio Select variant…
Compare all products in 6V Precious Metal Brush 20D Gearmotors.
| Description | Specs (8) | Pictures (4) | Resources (3) | FAQs (2) | On the blog (1) | Distributors (0) | 
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Dimensions
| Size: | 20D x 44L mm | 
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| Weight: | 43 g | 
| Shaft diameter: | 4 mm | 
General specifications
| Gear ratio: | 73:1 | 
|---|---|
| No-load speed @ 6V: | 180 rpm | 
| No-load current @ 6V: | 250 mA | 
| Stall current @ 6V: | 3200 mA | 
| Stall torque @ 6V: | 60 oz·in | 





























