As an important device of a belt conveyor, the cost of a conveyor roller accounts for 35% of a belt conveyor and bears at least 70% of the resistance of the conveyor, so the quality of the roller is very important.
According to the material, it can be divided into steel tube rollers, rubber rollers(buffer rollers), stainless steel rollers, ceramic rollers, nylon rollers and ultra-polymer rollers.
According to the application, there are grooved roller groups, parallel roller groups, self-aligning roller groups, buffer roller groups, and excessive roller groups.
The main function of the roller is to support the weight of the conveyor belt and the load. And the supporting roller must keep flexible and stable in the conveying process.
The quality of the roller can be seen from several aspects: the flexibility of the roller, the amount of axial movement, and the amount of radial runout of the roller.
As a smaller part of the belt conveyor, the idler roller is a simple mechanism, but it is not easy to make a good quality idler roller and the quality of the idler roller and its maintenance for the use of the conveyor belt The deadline is of great significance. Reducing the friction between the idler and the conveyor belt plays an important role in the life of the conveyor belt, which accounts for more than 25% of the total cost of the conveyor.