Idler is an important part of belt conveyor with many types and large quantities. It accounts for 35% of the total cost of a belt conveyor and produces more than 70% resistance, so the quality of the idler is particularly important.
The idler is used to support the conveyor belt and material weight. Idler operation must be flexible and reliable. Reducing the friction between the conveyor belt and the idler plays a key role in the service life of the conveyor belt, which accounts for more than 25% of the total cost of the conveyor. Although the idler is a small part in the belt conveyor and its structure is not complex, it is not easy to manufacture high-quality idler.
There are the following criteria for judging the quality of idler: radial runout of idler; Idler flexibility; Axial displacement.