Robotic arms play an important role in various fields, such as intelligent manufacturing, medical devices, and aerospace. As the core component of the robotic arm, the joint module features a compact structure, modular design, lightweight construction, high precision, and safety reliability. These joint modules drive the robotic arm's rotational motion, directly affecting the system's motion control quality and accuracy. Optimizing joint module design and performance can further improve the robotic arm's motion control accuracy, stability and response efficiency to meet demanding requirements across different applications.