Rubber
flat idlers

Belt width determines idler roll length. Standard widths include 18, 24, 30, 36, 42, 48, 60, 72, 84, and 96 inches. Flat idler conveyors accommodate belt widths up to 120 inches for specialized applications.

Calculate the required CEMA class (B, C, D, E, or F) based on belt width, material density, belt speed, and conveyor length. Flat belt conveyors handling light unit loads typically require Class B or C ratings, while higher-throughput package handling systems may need Class D or higher.

Standard roll diameters range from 4 to 8 inches, depending on CEMA class and application requirements.

Single-roll flat idlers suit most standard belts (up to approximately 48 inches). Multi-roll configurations become necessary for wider belts or applications requiring additional support to prevent sagging across the full belt width.

Note whether your existing carrying idlers use standard top mount (conventional bracket mounting) or channel inset mounting. Channel inset frames provide low-profile installation for clearance-restricted applications. Verify frame dimensions and bolt patterns match your existing conveyor structure.

Match bearing type and seal configuration to your operating environment.

Choose between continuous rubber coating, patterned, impact, or rubber disc configurations.