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4.4:1 Metal Gearmotor 25Dx63L mm LP 12V with 48 CPR Encoder

Pololu item #: 4881 8 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
 Free shipping in USA 

Price break Unit price (US$)
1 34.95
10 31.46


backorders allowed

This gearmotor consists of a low-power, 12 V brushed DC motor combined with a 4.4:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 211.2 counts per revolution of the gearbox’s output shaft. 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 without an encoder.

Key specifications:

voltage no-load performance stall extrapolation
12 V 1200 RPM, 100 mA 0.6 kg⋅cm (8 oz⋅in), 1.1 A

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

 Description Specs (14) Pictures (11) Resources (4) FAQs (2) On the blog (0) 

Dimensions

Size: 25D x 63L mm1
Weight: 95 g
Shaft diameter: 4 mm

General specifications

Gear ratio: 4.4:1
No-load speed @ 12V: 1200 rpm
No-load current @ 12V: 100 mA
Stall current @ 12V: 1100 mA
Stall torque @ 12V: 8 oz·in
No-load speed @ 6V: 600 rpm2
Stall current @ 6V: 550 mA2
Stall torque @ 6V: 4 oz·in2
Motor type: 1.1A stall @ 12V (LP 12V)
Lead length: 8 in3
Encoders?: Y

Notes:

1
Length measurement is from gearbox face plate to back of encoder cap (it does not include the output shaft). See dimension diagram for details.
2
This motor will run at 6 V but is intended for operation at 12 V.
3
May vary by a few inches.

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