bearing 1.GCr15, GCr15SiMn, G20Cr2Ni4A 2.Precision level:P0, ... AISI) 52100---American, (Din) 100Cr6---Germany;4)Shield/closure: open bearing, Z, ZZ, RS, 2RS,5)Snap ring: N, NR6) ... /W35) 100--600We can supply many other kinds of bearing,such as: Linear motion bearingDeep Groove Ball BearingCombination BearingJoint ... Roller BearingSelf-aligning ball bearingWith Block Insert Ball Bearing Spherical Roller ...