Flanged ball bearings are available open, shielded or sealed. With bore sizes as small as 1mm. The smaller sizes are sometimes referred to as instrument bearings.
1) Material: Chrome steel or carbon steel
2) Cage: Steel
3) Ball: steel
4) Precision: P0 - P6
5) Vibration: Z1 - Z3
6) Clearance: C0 - C5
7) Application: precision instrument, low noise electromotor, automobile and motorcycle, etc.