Idler roller

Description

Common Types of Idler Rollers
Depending on their position and function within a conveyor system, idler rollers are categorized into several types:
Carrying Idlers: Located on the “load” side of the conveyor, these support the belt and the material being moved.
Troughing Idlers: Usually consist of three or five rollers angled (typically 20°, 35°, or 45°) to form a “U” shape, which increases load capacity and prevents spillage.
Impact Idlers: Positioned at loading points, these are often reinforced with rubber discs or rings to absorb the shock of falling material and protect the belt.
Return Idlers: Located on the underside of the conveyor, they support the empty belt as it travels back to the start.
Flat Return Idlers: A single horizontal roller that keeps the belt from stretching or sagging.
V-Return Idlers: Two rollers arranged in a “V” shape to provide better tracking and stability for high-tension belts.
Training/Self-Aligning Idlers: These feature a pivoting mechanism that automatically adjusts the belt’s position if it begins to drift off-center, preventing edge damage.