Superior airproof property low noise Supper strong anti-adhesion ability Low rotation resistance High wear resistance. Roller parameter StandardDIN15207, DIN22107, ISO1537, GB10595CertificateISO, CEType conveyorDTII, TD75,DTII(A)Bearing NO6204/6205//6306/6307/6308 etcShaft Materialcarbon steel, Rubber , nylon etcBelt width from 300mm to 2000mmBearing brandSKF,HRB,FAG,NSKTube materialcarbon Steel ...