... , NSK, NTN, SK... Bore Size: 120 Outsi Tapered Roller Bearing 302041.ISO9001:2000 Qualification2.Chrome steel material,GCr15SiMn3.Fruitful ... precision10.Various bearing models & brands in stock Our taper roller bearings are generally used to support combined loda mainly ... so on SeriesSeries 30200,30300,32200,32300,33000,etc.Ring MatericalChrome Steel,Carbon steel, Stainless steelTolerance gradeGB/T307. ...