... High Precision & High Quality Cylindrical Roller Bearing Cylindrical Roller Bearing N1012 Series N,NU,NJ,NN,NF,NUP,NNU series, etc. Ring ... Material GCr15 GCr15SiMn Cage Material Brass, Steel ID Size 10mm-1600mm Quality standard ISO ... inspection7.Appearance inspection8.Rust prevention9.Product packagingcylindrical roller bearing: SERIESBORE DIAMETERVARIANTSTRUCTURE220E 10-220 N,NF,NJ, ...