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The RX-28 Dynamixel Robot Servo Actuator is more than just a digital servo, it's a highly sophisticated robotic component. Each servo has the ability to track its speed, temperature, shaft position, voltage, and load. As if this weren't enough, the control algorithm used to maintain shaft position can be adjusted individually for each servo, allowing you to control the speed and strength of the motor's response. All of the sensor management and position control is handled by the servo's built-in microcontroller. This distributed approach leaves your main controller free to perform other functions.
RX-28 Stats
Operating Voltage 16V 12V
Stall Torque* 37.7 kg·cm
523.55 oz·in
28.3 kg·cm
393 oz·in
No-load Speed 0.126 sec/60° 0.167 sec/60°
Weight 72g
Size 50.6 x 35.6 x 35.5 mm
Resolution 0.29°
Reduction Ratio 1/193
Operating Angle 300° or Continuous Turn
Max Current 1200mA
Standby Current 50 mA
Operating Temp -5°C ~ 85°C
Protocol RS485 Asynchronous Serial
Module Limit 254 valid addresses
Com Speed 7343bps ~ 1Mbps
Position Feedback Yes
Temp Feedback Yes
Load Voltage Feedback Yes
Input Voltage Feedback Yes
Compliance/PID Yes
Material Metal Gears &
Engineering Plastic Body
Motor Maxon RE-MAX
Manual Download RX-28 manual
Controller List USB2Dynamixel

*Stall torque is the maximum instantaneous and static torque. ROBOTIS recommends that your robot or project uses 1/5 or less of the stall torque to create stable motions.

RX-24F/28 Servo Documentation: RX-24F/28 Technical Drawings & 3D Models:
  • RX-24F/28 Dimensional Drawing (PDF)
  • RX-24F/28 Dynamixel 3D Models (STP)
  • HN07 Series Servo Horn Drawings (DWG)
  • HN07 Series Servo Horn 3D Models (STP)
  • FR07 Series Frame Set Drawings (DWG)
  • FR07 Series Frame Set 3D Models (STP)
Note: You can view DWG files using a free download of eDrawings Viewer. Various CAD apps support STP & DWG Files.

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