Load bearing roller group
Standards for load bearing rollers:
The impact of the radial runout of the load bearing roller group on the belt conveyor: within the range of the specified runout, the belt machine can be kept running smoothly, otherwise it will cause the belt conveyor belt to run off resonance, resulting in material spills and pollution of the environment. The higher the belt speed, the more the benefits of less radial runout. China's standard stipulates an amount of 0.7 mm, and Japanese JIS standards stipulates an amount of 0.5 mm.
Impact of the flexibility of load bearing rollers on the belt conveyor: During the operation of the belt conveyor, the flexibility of the rollers is very important. If the flexibility of the rollers is not good and the rotation resistance coefficient is high, the entire belt conveyor The system has to pay a lot of power, consume a lot of power, and sometimes cause the tape to tear and the motor to burn out. In severe cases, it can cause a fire. Therefore, choosing a roller with a low coefficient of rotation resistance (less than 0.020) is an important part of the design and selection of a belt conveyor.
The impact of the amount of axial movement on the belt conveyor: China's belt conveyor manufacturing technology is more and more advanced, but the axis movement is still a topic that needs to be researched, because China's belt manufacturing technology, belt conveyor installation technology and There is a large gap between the upper and lower sides, and the deviation of the tape often occurs. If the axial movement of the roller is large, it will cause early damage to the roller. Generally, it is better to control the axial movement within 0.5-0.7 mm.
There are five other criteria for judging the quality of the rollers:
1.Dustproof performance of roller
2.Waterproof performance of roller
3. Axial bearing performance of roller
4.Impact resistance of roller
5. Service life of roller