... service 4,low price Good Quality V Groove Ball Bearing From China Model number 16001 Dimension(mm) 12*28*7 ... 6300, 6400, 62200, 62300, 6900,16000,etc. Ring MaterialChrome Steel ,Carbon steel,bearing steel Tolerance gradeGB/T307.1-205 ID Size ... .Appearance inspection8.Rust prevention9.Product packagingGeneral parameter items : Bearing typeDimension(mm)Rated dynamic load(KN)MAX RotationWeight(Kg) ...