What are the different types of robot joints ？

Robot joint actuator modules are the core components that enable flexible and precise robotic motion. These modules integrate essential functions such as motors, reducers, encoders, brakes, and controllers. The performance of the joint module directly affects the robot's motion accuracy, speed, and overall flexibility. Due to differences in working environments and task requirements, various types of robots adopt different joint configurations and key components.
 
Based on the type of reducer used, joint actuators can be classified into the following categories:
 
1.Harmonic Drive Joint actuators
Featuring high precision, compact size, and lightweight design, these are widely used in humanoid and collaborative robots.
2.Planetary Gear Joint Modules
Offering moderate load capacity and a compact structure, they are suitable for general-purpose industrial automation applications.
3.RV Reducer Joint Modules
Known for high rigidity and excellent shock resistance, these are commonly used in heavy-duty industrial robotic arms.
From AVATAR’s range of developed joint actuator modules, the main product lines include:
 
Harmonic Drive Rotary Joint Actuators: including the ultra-thin TD series, the cost-effective M series, and the versatile P series.
Planetary Gear Joint Actuators: available in a wide range of models covering low to high torque and low to high speed requirements.
 
With a comprehensive lineup of joint actuator modules, we offer tailored solutions to meet the diverse design and performance needs of various robotic systems.