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34:1 Metal Gearmotor 25Dx52L mm LP 12V

Pololu item #: 3252 26 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
 Free shipping in USA 

Price break Unit price (US$)
1 19.95
10 17.96


backorders allowed

This gearmotor consists of a low-power, 12 V brushed DC motor combined with a 34.014:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox. This gearmotor is also available with an integrated encoder.

Key specifications:

voltage no-load performance stall extrapolation
12 V 170 RPM, 50 mA 3.7 kg⋅cm (51 oz⋅in), 0.9 A

Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…

 Description Specs (19) Pictures (10) Resources (3) FAQs (1) On the blog (0) 

Dimensions

Size: 25D x 52L mm1
Weight: 88 g
Shaft diameter: 4 mm2

General specifications

Gear ratio: 34.014:1
No-load speed @ 12V: 170 rpm3
No-load current @ 12V: 0.050 A4
Stall current @ 12V: 0.90 A5
Stall torque @ 12V: 3.7 kg·cm5
Max output power @ 12V: 1.6 W
No-load speed @ 6V: 85 rpm6
Stall current @ 6V: 0.45 A6
Stall torque @ 6V: 1.9 kg·cm6
Motor type: 12V, 0.9A stall (LP 12V)

Performance at maximum efficiency

Max efficiency @ 12V: 42 %
Speed at max efficiency: 140 rpm
Torque at max efficiency: 0.50 kg·cm
Current at max efficiency: 0.14 A
Output power at max efficiency: 0.73 W

General specifications

Encoders?: N

Notes:

1
Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals). See dimension diagram for details.
2
D shaft.
3
Typical; ±20%.
4
Typical, ±50%; no-load current depends on internal friction, which is affected by many factors, including ambient temperature and duration of motor operation.
5
Stalling is likely to damage the gearmotor. Stall parameters come from a theoretical extrapolation of performance at loads far from stall. As the motor heats up, as happens as it approaches an actual stall, the stall torque and current decrease.
6
This motor will run at 6 V but is intended for operation at 12 V.

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