Products for USB Sensing and Control
Products for USB Sensing and Control

12V/8.4Kg-cm/28RPM 139:1 DC Gear Motor w/Encoder

ID: 3264E_0

This DC motor has an encoder, a 139:1 gearbox, a rated speed of 28 RPM and rated torque of 8.46 Kg·cm.


Replaced by the 3264E_1 – 12V/8.4Kg-cm/28RPM 139:1 DC Gear Motor w/ Encoder

The 3264E is a 12 volt gear motor, generating 8.46 Kg-cm of torque at 28 RPM. This motor is quite compact considering the amout of power it can output.

This motor comes equipped with an E4P US Digital Encoder, which keeps track of the motor's rotation, allowing you to control your motor precisely.

The planetary gearbox on this motor is more sophisticated than a typical spur gearbox and will provide greater efficiency, higher torque, and quieter motor operation.

Comes packaged with


warning The torque this motor produces when it stalls exceeds the rated strength of the gearbox. This means that stalling or very heavily loading this motor can cause serious damage to the gearbox. To avoid damage, avoid sudden loads or any load higher than the Maximum Strength of Gears spec.

Product Specifications

Motor Properties
Motor Type DC Motor with Encoder
Output Power (Mechanical) 2.9 W
Rated Speed 28 RPM
Rated Torque 8.5 kg·cm
Stall Torque 50 kg·cm
Electrical Properties
Rated Voltage 12 V DC
Rated Current 410 mA
Stall Current 1.5 A
Physical Properties
Shaft Diameter 6 mm
Weight 195 g
Recommended Wire Size (Motor) 20 - 25 AWG
Gearbox Specifications
Gearbox Type Planetary
Gear Ratio 139 1841221 : 1
Number of Gear Trains 3
Maximum Strength of Gears 30 kg·cm
Shaft Maximum Axial Load 35 N
Shaft Maximum Radial Load 25 N
Backlash Error
Encoder Specifications
Encoder Resolution 360 CPR
Connector Type E4P
Current Consumption Min 27 mA
Supply Voltage Min 4.5 V DC
Supply Voltage Max 5.5 V DC
Customs Information
Canadian HS Export Code 8501.10.00
American HTS Import Code 8501.10.40.60
Country of Origin CN (China)
The 3264E DC motor connects to either of the following controllers:

If you decide to use the 1065, you can connect the encoder directly into its encoder input. If you decide to use the 1064, you'll also need one of the following devices to read your encoder:

You'll need to solder wires to the contacts of the motor in order to connect it to a controller.