Belt conveyor roller is one of the crucial components of belt conveyors, primarily used to support the weight of the conveyor belt and the material. Belt conveyor rollers come in various types. Below, I will mainly introduce some common types of belt conveyor rollers:Primarily used for unloaded sections or where fixed plow-type unloaders are installed. The standard trough angle is 35 degrees, hence, 35-degree trough-type idlers and 35-degree trough-type inclined idlers are used in each conveyor. The inclined idlers play a role in centering and alignment.The return roller, also known as the parallel lower roller, is a type of lower roller used primarily to support conveyor belts. It comes in parallel V-shaped and reverse V-shaped designs. When the V-shaped and reverse V-shaped rollers are used together, they form a diamond-shaped cross-section, which effectively prevents the conveyor belt from running off course. It's important to note that reverse V-shaped rollers can only be used at the head of the conveyor.The Heart Rollers include standard heart rollers, friction heart rollers, and conical heart rollers. Heart rollers are used to automatically correct excessive deviation of the conveyor belt during operation, ensuring the normal operation of the conveyor.