taper roller bearing size:30000,31000,32000,33000series material:bearing steel GCR15 hardness:59-63HRC precision:ABEC-1 32008 metric roller bearing detail descriptionTapered roller bearing QUALITY: ISO9000 Ready goods ... speed, long life8.302 series, 303 series. 313 series, 320, series 322 series, 323 series, 330 series, 331 series, 332 series and inch tapered roller bearing such ad LM48548/10, ...