| Roller Diameter | 89mm , 114 mm |
| Roller Length | 8" to 60" |
| Roller Material | Mild Steel |
| Shaft Material | MS |
| Shaft Diameter | 20mm to 30mm |
Carrying idlers are cylindrical rollers designed to support the loaded belt on a conveyor system, forming a trough shape to increase carrying capacity. Bearing life is a critical factor, with a minimum of 40,000 hours often specified. Here's a more detailed look at carrying idler specifications:Key Components and Materials:
- Shell: Typically made from steel tubes, either ERW (electric resistance welded) or seamless, and must meet standards like IS: 9295-1983.
- Shaft: Made from steel, such as A3 and 45# steel.
- Bearing: Ball bearings (e.g., 6204, 6205, 6305, etc.) are commonly used.
- Seals: Multi-labyrinth type seals with dust covers and rain caps are used to protect bearings.
- Rubber (Impact Idlers): Impact idlers may use rubber discs or rings for absorbing impacts.
Diameter and Size:
- Shell Diameter: Various diameters are available, ranging from 76mm to 219mm (3" to 8 5/8").
- Shaft Diameter: Corresponds to the shell diameter, with options like 20mm/25mm/30mm or 25mm/30mm/35mm.
- Bearing Series: Selected based on shaft diameter and load capacity.
Design and Performance:
- Eccentricity:The diametral run-out (eccentricity) of the idler should not exceed 0.8mm at any point along the shell.
- Working Life:Idlers should have a minimum rated life of 40,000 hours.
- Troughing Angle:Carrying idlers are designed to form a trough shape to support the belt, with common troughing angles of 20°, 35°, and 45°.
- Spacing:Spacing between idlers is determined by belt width, conveyor capacity, and load.
Standards:
- IS 9295-1983: Specifies steel tubes for idlers.
- IS 8598-1987: Specifies idlers and idler sets for belt conveyors.
Additional Information:
- Production Capacity: 10000 pieces
- Delivery Time: 7 days