Load bearing rollers are key components of belt conveyors. Their core function is to support the conveyor belt that carries materials, reduce the running resistance of the conveyor belt, ensure the stable operation of the conveyor belt, and extend the service life of both the conveyor belt and the rollers themselves. They are widely used in industries requiring continuous material conveying, such as mining, coal, ports, building materials, chemicals, and grain, and serve as the fundamental parts for ensuring efficient and reliable operation of the conveying system.