20.4:1 Metal Gearmotor 25Dx50L mm HP 12V

: MOT02122
€32.90
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*Disclaimer: The images are merely illustrative.

This gearmotor consists of a high-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.

 

 

Key specifications:

voltage

no-load performance

stall extrapolation

12 V

500 RPM, 250 mA

7.4 kg⋅cm (100 oz⋅in), 5.0 A

Overview

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). Each version is also optionally available with an integrated 48 CPR quadrature encoder. See the 25D metal gearmotor datasheet (2MB pdf) for more information, including detailed performance graphs for each gearmotor version. You can also use our dynamically sortable 25D gearmotor comparison table to search for the version that offers the best combination of speed, torque, and current draw for your particular application. A more basic comparison table is available below.

 

 

Dimensions

Size:

25D x 50L mm1

Weight:

85 g

Shaft diameter:

4 mm2

 

General specifications

Gear ratio:

20.4:1

No-load speed @ 12V:

500 rpm

No-load current @ 12V:

0.25 A

Stall current @ 12V:

5.0 A

Stall torque @ 12V:

7.4 kg·cm

Max output power @ 12V:

9.4 W

No-load speed @ 6V:

250 rpm

Stall current @ 6V:

2.5 A

Stall torque @ 6V:

3.7 kg·cm

Motor type:

12V, 5.0A stall (HP 12V)

 

Performance at maximum efficiency

Max efficiency @ 12V:

46 %

Speed at max efficiency:

420 rpm

Torque at max efficiency:

1.1 kg·cm

Current at max efficiency:

0.88 A

Output power at max efficiency:

4.8 W

 

MOT02122

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