Trough idler is used in the steel industry, harbor, coal industry, power industry, cement industry, etc. Besides we can manufacture the rollers and idlers according to the buyers' requirements! Notes:custom Trough Roller:Hengguang Conveying Machinery 1. Conveyor roller idler feature: 1. Roller idlers Dia 50mm-219mm, length 190-3400mm, which are used in the steel industry, harbor, coal industry, power industry, cement industry, etc 2. Tube: Q235 3. Shaft: 45# STEEL 5. Bearing: Single & Double Row Deep Groove Ball Bearing 2RZ&2Z with C3 clearance. 6. Seals: Grease retaining inner seal with Multi-stage Labyrinth and Retention Cap with Outboard Rubbing Flinger Seal. 7. Lubrication: Grease is Lithium soap type grease with Rust Inhibitors. 8. Welding: Mixed gas shielded arc welding end 9. Painting: Ordinary painting, hot galvanized painting, electric static spraying painting, baked painting. Besides we can manufacture the rollers and idlers according to the buyers' requirements. Idler Diameter(mm) Length Scope(mm) Shaft Diameter(mm) Bearings Type(Min-Max) Idler's Shell Wall Thickness(mm) 50 150-2500 20;25 204 3.2-4.0 76 20;25 204 205 89 20;25 204 205 3.2-6.0 102 20;25;30 204 205 305 3.5-6.0 108 20;25;30 204 205 305 306 114 20;25;30 205 206 305 306 127 20;25;30 204 205 305 306 133 20;25;30 205 206 207 305 306 140 20;25;30 205 206 207 305 306 152 20;25;30 205 206 207 305 306 307 308 4.0-6.0 159 20;25;30;40;45 205 206 207 305 306 307 308 165 20;25;30;40;45 207 305 306 307 308 4.5-6.0