belt conveyor roller 1.Standared:DIN,CEMA,AS,JIS 2.Size:89mm*6204 ... 310 more than 5 mm219150-3500308 310more than 5 mmconveyor roller:1.Roller idlers Dia 63.5mm-219mm, length 150-3500mm, which ... with C3 clearance.4.Seals: Grease retaining inner seal with Multi-stage Labyrinth and Retention Cap with OutboardRubbing Flinger Seal.5 ... ,adjusting idler,vertical idler etc.Package mining belt conveyor roller