We all know that is a belt conveyor idlers heart . Roller bearing good sealing components of the need for strict quality control to ensure that the structural composition of local and sealing , so that the roller bearing with good sealing performance. At the same time , and by extending the length of the labyrinth clearance , improved sealing effect , extend the service life of the roller . Roller bearing is widely used in large open-air dust , high corrosion environments such as mines, power plants , steel mills, stones factory , cement plants and coking plants, coal washing , salt factories , soda , fertilizer plants, terminals , etc. All delivery places.
    Depending on the size of the enterprise , the need and use different number of idlers , determined in accordance with the actual situation of their own , to meet the needs of production and processing . As most of the work in an environment belt dust pollution is serious, and is corrosive, especially some of the hard particles on the roller tube wear extraordinary . Although put a lot of manpower and resources for maintenance roller often , however, the use of roller bearing wide range of large , frequent early failures , resulting in a harsh cry until stuck completely damaged , people are very hard , serious downtime restricting the production line conveyor belt running. And the labor intensity greatly increased, often working in high dust environments can cause serious harm to human health . For a long time , the traditional roller life in harsh environments only a few hundred hours. Idlers early failure , resulting in frequent failure conveyors , tear tape, or even personal injury accidents are not uncommon . Therefore, we must understand the relevant knowledge idlers , rollers and more accurately determine the replacement time , so as to avoid unnecessary losses and casualties .