... (AISI) 52100-American, (Din) 100Cr6-Germany Types: ZZ, 2RS and open are available Non-standard bearing Radial internal clearance: C2, C0 ... and C3 Precision level: P0, P6, P5 (ABEC1, ABEC3, ... machinery, electric tools, power tools, sports apparatus, water pump and agricultural machinery Certification: ISO 9001: 2008 With an annual output ...