20.4:1 Metal Gearmotor 25Dx50L mm LP 12V

Pololu item #: 3251 25 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 20.4:1 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 260 RPM, 100 mA 2 kg⋅cm (29 oz⋅in), 1.1 A
 Description Specs (13) Pictures (10) Resources (3) FAQs (2) On the blog (0) 

Dimensions

Size: 25D x 50L mm1
Weight: 85 g
Shaft diameter: 4 mm

General specifications

Gear ratio: 20.4:1
No-load speed @ 12V: 260 rpm
No-load current @ 12V: 100 mA2
Stall current @ 12V: 1100 mA
Stall torque @ 12V: 29 oz·in
No-load speed @ 6V: 130 rpm3
Stall current @ 6V: 550 mA3
Stall torque @ 6V: 14 oz·in3
Motor type: 1.1A stall @ 12V (LP 12V)
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
Maximum.
3
This motor will run at 6 V but is intended for operation at 12 V.

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