precision ball bearing manufacturer: 1,ABEC-3,5;Z2V2,Z3V3 2,High speed 3,End cover:ZZ,RS 4,Noise level:Z1,Z2 682 2x5x1.5mm Open Bearing Sizes: Bore :2mmOuter Diameter :5mmWidth :1.5mm682ZZ 2x5x2.3mm Shielded Bearing Sizes: Bore :2mmOuter Diameter :5mmWidth :2.3mm Max Load (kgf)Dyn:16Stat:5RPM (x1000):100Shield / closure: Open Bearing, Z, ZZ, RS, 2RS,TTTolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC ...