When a robot reducer is in operation, internal components require lubrication to reduce friction, minimize wear, and improve transmission efficiency and accuracy. The task of the oil seal is to enclose the lubricating oil within the reducer and block external pollutants. This effectively reduces oil loss and deterioration, maintains a sufficient lubricating oil film, and minimizes wear and faults in the robot reducer. Robot reducer oil seals are typically made of rubber material due to their excellent elasticity and wear resistance, enabling them to withstand various temperature and pressure environments. These oil seals are designed with a specific structure, often featuring double or single lip shapes, which allows for better fitting with the rotating shaft and produces a stable sealing effect. During installation and usage, the oil seal used in robot reducers needs to be properly installed onto the bearing seat of the reducer, ensuring full contact between the seal and the rotating shaft to achieve optimal sealing effectiveness. Additionally, regular inspection and replacement of the oil seal are necessary to ensure its proper functioning and effective sealing. In summary, the oil seal used in robot reducers plays a crucial role in maintaining reducer performance and extending its operational lifespan. Through effective sealing, the oil seal ensures the stability and reliability of the lubrication system inside the reducer, protecting vital components from contamination and damage and thereby enhancing the efficiency and reliability of robots.