Trough idlers are the most common type of carry idler, which are typically designed with 3 or 5 idler rollers and are fitted to the carry-side of the conveyor belt. The 5-roll idler offers more uniform cross section, resulting in a greater net carrying capacity. The 3-roll design has a centre idler roll and wing idlers on either side.
The benefit of using a trough idler is that they help to ensure the load-bearing capacity of the conveyor belt is the same along the length of the belt. With a more even distribution of load-bearing, the maximum capacity of material at the loading point won’t fall off of the belt.
If you have any questions on grooved conveyor rollers. We will give the professional answers to your questions.