Conveyor Roller Idler Set
| Roller Diameter | 89, 75, 114 MM |
| Belt Width | 400 TO 1200 MM |
| Type of Roller | Conveyor |
| Roller Length | 100 TO 1500 MM |
| Country of Origin | Made in India |
| Minimum Order Quantity | 10 Piece |
An idler roller, often simply called an idler or conveyor roller, is a crucial component in belt conveyor systems. These cylindrical-shaped bars are positioned along and underneath the conveyor belt to perform several vital functions, ensuring the smooth and efficient operation of the conveyor.
Carrying Idlers (Load Side Idlers):
- Troughing Idlers: The most common type, these consist of a central roller and two angled wing rollers that form a trough shape, supporting the loaded belt and preventing material spillage. Troughing angles commonly range from 20°, 35°, to 45°.
- Flat Idlers: Used for supporting the belt in a horizontal or slightly inclined position, often in feeder applications or where a wide coverage is needed.
- Impact Idlers: Located at loading points, these have rubber rings or special coatings to absorb the shock of falling material, protecting the belt from damage.
- Picking Table Idlers: Designed to spread material out for inspection or manual sorting, often with a longer center roll and shorter angled wing rolls.
- Self-Training Carrying Idlers: These automatically adjust to correct belt misalignment on the carrying side, preventing the belt from running off track.
Return Idlers:
- Flat Return Idlers: The most common type on the return side of the conveyor, supporting the empty belt as it returns to the loading point.
- Rubber Disc Return Idlers: Used in applications with sticky materials, these have rubber discs along the roll that help to remove carryback (material adhering to the belt) and prevent buildup.
- V-Return Idlers: Consist of two rollers in a V-shaped profile (e.g., 10° or 15°), providing better belt tracking and support for high-tension belts.
- Self-Training Return Idlers: Similar to self-training carrying idlers, but designed for the return side to correct belt misalignment.
Materials and Construction:
Idler rollers are typically made from steel tubes, but can also be found in materials like HDPE (High-Density Polyethylene), nylon, or ceramic, depending on the application and environment (e.g., corrosive environments, high temperatures, or where lightweight components are desired). They incorporate precision bearings and labyrinth seals to ensure smooth rotation, minimize friction, and protect against dust, dirt, and moisture.
In summary, idler rollers are essential, yet often overlooked, components that significantly contribute to the efficiency, longevity, and safety of conveyor systems by supporting the belt, managing material, reducing friction, and maintaining proper belt alignment.
