... 3) 20 years manufacturer 4) ISO9001:2000certificate.. Conveyor roller bearing1) Good quality, competitive prices 2) ID ... roller bearingBrandHQBPlace of OriginChina Typetaper roller bearings, tapered roller bearing,deep groove ball bearing,spherical roller bearings , cylindrical roller ... ,Middle East,Asia,etc Single-row taper Roller BearingsBearing numbersBoundary dimensions(mm)Basic load ratings ...