Noise-reducing pepper ball robots have many working environments that people can't operate, such as chemical workshops, electroplating workshops, underwater operations, etc. The rotating balls and bearings used in robots have to adapt to these special environments, and steel balls sometimes can't meet such requirements, so pepper balls have become the first choice. Pepper balls are self-lubricating, resistant to chemicals and characteristics, and light in weight and noiseless. Therefore, pepper balls have been used in fixed robots, such as POM pepper balls for robots. With the popularization and promotion of robots, more robot manufacturers will choose pepper balls instead of traditional steel balls in the future.