1，Dimension: Inner diameter 4mm-1600mm
2，Tolerance Grade: ABEC-1/3/5/7
3，Noise: Z1,Z2,Z3
4，Vibration: V1,V2,V3
6，Bearing Series:
Metric-6000,6200,6300,6400,6700
Metric-16000,62200,62300
Inch-1600,R,RMS,RLS
Wider Inner Rings-8000,87000,88000
Large Load-BL200,BL300