clindrical roller bearing kinds: N,NU,NJ series material:GCR15 hardness:59-63HRC class of precision:ABEC-1 Cylindrical roller bearings mostly consist of ... the radial load, on the other hand, single row cylindrical roller bearing with ribbed inner ring and ribbed outer ring can take smaller ... /C,T/TSupply Ability:50000 Piece/Pieces per Month Clindrical roller bearing