N1012 Cylindrical Roller Bearing 1.Best quality 2. low noise, long life 3. ... Precision & High Quality Cylindrical Roller Bearing Cylindrical Roller Bearing N1012 Series N,NU,NJ,NN,NF,NUP,NNU series, etc. Ring Material GCr15 ... gland6.Noise inspection7.Appearance inspection8.Rust prevention9.Product packagingcylindrical roller bearing:SERIESBORE DIAMETERVARIANTSTRUCTURE220E 10-220 N,NF,NJ,NU,NP300E ...