Features: 1) Material: chrome steel AISI5200 and carbon steel 2) Inch series and metric series 3) With a low friction coefficient and high-limiting speed 4) Ceramic ball bearing also available 5) Main products: a) Standard sizes: MR series, 603-609, 623-629, 634-638, 6000-6030, 6200-6230, 6300-6330, 6403-6416, R2-R24, 1601-1657, 16001-16020 b) Non-standard sizes: according to your requirements c) Bearings with snap ring groove: 6000N-6030N, 6200N-6230N d) Flanged series bearings e) Stainless steel ball bearings: SMR series, SR2-SR8, S603-S609, S623-S629, f) S683-S689, S693-S699, S6000-S6005, S6200-S6205, S6300-S6304 Packing: Standard export packing