Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-7 Vibration level codes: V4, V3, V2, V1 Internal clearance codes: C2, C3, C4, C5 Material: Gcr15, 45 steel, stainless steel, customized Certification: ISO 9001 Deep groove ball bearings, angular contact ball bearings, self-alinging ball bearings, cylindrical roller bearings, tapered roller bearings, thrust ball bearings, needle roller bearings, spherical roller bearings and so on
