ISO9000&ISO14001,TS16949certified OEM for German&Japan R&D capability CMM & FOUNDRY MASTER for measuring long life&low noice Features and specification of TLD bearingSeries 16018,6019,6020,6021,6022,6024,6026,6028,6030,6032,6034,6036Ring MaterialGCr15, GCr15SiMn, Chrom steel, 52100Cage materialBrass, steelID size100mm 1600mmQuality standardISO9001:2000 and ISO9001:2000/ISO14001:2004PrecisionP0, ...