We all know that the roller is the heart of a belt conveyor. The good sealing performance of the roller bearing seat requires strict quality control of the components to ensure the structural and sealing properties of the local components, so that the roller bearing seat has good sealing performance. At the same time, by extending the gap and length of the maze, the sealing effect is improved, which can prolong the service life of the rollers. Roller bearing seats are widely used in outdoor environments with high dust and corrosiveness, such as mines, power plants, steel mills, stone mills, cement plants, coking plants, coal washing plants, salt plants, alkali plants, fertilizer plants, docks and all other conveying places. According to the size of different enterprises, the number of rollers needed and used varies, and is determined based on their actual situation to meet the needs of production and processing. Due to severe dust pollution and corrosiveness in the working environment of most belt conveyors, especially some hard particles causing extraordinary wear on the roller tube body. Although a large amount of manpower and material resources are often invested in repairing the rollers, the use of roller bearing seats is widespread and frequent early failures occur, resulting in harsh noises and even jamming and damage, making it difficult for people to prevent and seriously restricting the normal operation of the belt conveyor production line. And the labor intensity has significantly increased, posing a serious threat to the personal health of those who often work in high dust environments. For a long time, the service life of traditional rollers in harsh environments has only been a few hundred hours. The early failure of the roller causes frequent conveyor failures, tearing of the tape, and even personal injury accidents, which are not uncommon.