... *140mm*104mmInside diameter100mmOuter diameter140mmThickness104mmRaw MaterialChrome steel , GCr15CageBrass /SteelPrecisionP0,P5,P4ClearanceC1,C2,C3Noise levelZ1,Z2,Z3ToleranceABEC-1,ABEC-3,ABEC-5OriginJIANGSUCertificateISO9001: 2000SpecificationRated ...