MATERIAL: The pipe:S235JR(DIN) Shaft:C45(DIN) Bearing:Ball bearing Bearing housing:ST14(DIN) Grease:Lithium soap type Specificationsidler for conveyor 1.Diameter:63-219mm . 2.Length:190-3500mm . 3.Material: Iron, Rubber,HDPE, etc.idler for conveyorSpecifications1.Diameter:63-219mm . 2.Length:190-3500mm . 3.Material: Iron, Rubber, Nylon, HDPE, etc. 4.shafts diameter from 20 to 40mm Roller Conveyor ...