... and inspection team.7. Bearing, bearing housing and sealing: The bearing quality determines the life of a roller. We use world and Chinese ... use SKF, NSK, HRC, LYC,ZWZ brand and the sealing type have ZZ, 2RS, RS and so on . Bearing & Sealing Press: ... -3800308 310more than 5 mm219150-3500308 310more than 5 mm The best sale standard conveyor spare parts, steel spiral roller, cleaning spiral ...