180:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output

180:1 Mini Plastic Gearmotor, Offset 3mm D-Shaft Output
Pololu item #: 1594 1233 in stock

Price break Unit price (US$)
1 5.49
10 4.95
50 4.67

backorders allowed

This compact, inexpensive plastic gearmotor (brushed DC motor with a 180:1 reduction gearbox) is well suited for use in small robots. While intended for operation at 4.5 V, it should run comfortably in the 3 V to 6 V range. The gearbox has a 0.38″-long, 3 mm-diameter D-shaped output shaft that is offset from but parallel to the motor shaft, and a built-in safety clutch helps protect the gears from excessive loads.

Key specs at 4.5 V: 80 RPM and 80 mA free-run, 30 oz-in (2.2 kg-cm) and 0.8 A stall.

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 Description Specs (11) Pictures (12) Resources (4) FAQs (1) On the blog (1) 


Size: 36.5 x 20 x 27.4 mm1
Weight: 19 g
Shaft diameter: 3 mm2

General specifications

Shaft type: offset 3mm D
Typical operating voltage: 4.5 V
Gear ratio: 180:1
Free-run speed @ 4.5V: 80 rpm
Free-run current @ 4.5V: 80 mA
Stall current @ 4.5V: 800 mA
Stall torque @ 4.5V: 30 oz·in3
Extended motor shaft?: N


See drawing for detailed dimensions.
D shaft.
Note: the gearbox's built-in clutch might start slipping at a lower torque.

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Mini Plastic Gearmotors
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