ISO9000&ISO14001,TS16949certified OEM for German&Japan R&D capability CMM & FOUNDRY MASTER for measuring long life&low noice Features and specification of TLD bearingsingle row cylindrical roller bearingN,NU,NJ,NUP,SLdouble row cylindrical roller bearingNN,NNU,NFmulti-rowfour row and six row,NNCRing MaterialGCr15, GCr15SiMn, Chrom steel, 52100Cage materialBrass, stellID size80mm 1600mmQuality ...