... 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 ... - tube wall thickness: 2-5mm or more than 5mm- tube length: 190-3500mm - shaft diameter: 20-40 mm or as drawing ...