4.4:1 Metal Gearmotor 25Dx48L mm HP 12V

4.4:1 Metal Gearmotor 25Dx48L mm HP 12V


This gearmotor consists of a high-power, 12 V brushed DC motor combined with a 4.4:1 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.

In Stock

These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and with five different motors (two power levels of 6 V motors and three power levels of 12 V motors). The gearmotors all have the same 25 mm diameter case and 4 mm diameter gearbox output shaft, so it is generally easy to swap one version for another if your design requirements change (though the length of the gearbox tends to increase with the gear ratio).

In general, these kinds of motors can run at voltages above and below their nominal voltages (they can begin rotating at voltages as low as 1 V); lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.


Size: 25D x 48L mm
Weight: 82 g
Shaft diameter: 4 mm

General specifications

Gear ratio: 4.4:1
No-load speed @ 12V: 2250 rpm
No-load current @ 12V: 300 mA
Stall current @ 12V: 5600 mA
Stall torque @ 12V: 23 oz·in
No-load speed @ 6V: 1125 rpm
Stall current @ 6V: 2800 mA
Stall torque @ 6V: 11 oz·in
Motor type: 5.6A stall @ 12V (HP 12V)
Encoders?: N

Specific References

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