Rubber rollers is widely used in acid and alkali resistant conveyor. It can replace the metal roller, nylon plastic roller, and has a long life, easy for installation, self-centering steady delivery, to reduce deviation and protection of the conveyor belt characteristics. The advantage of rubber roller idler is better than the traditional idlers, low wear coefficient, the small proportion, light weight, easy to change, and low noise, stable operation, more suitable for the production of poor working conditions, long-life usage.