1. Type of Bearing

 A. Deep groove ball bearings

 B. Angular contact ball bearings

 C. Self-aligning ball bearing

 D. Special bearings

2. Specification of Bearing

 A. Full Ceramic Bearing

 B. Super High Speed of Ceramic Bearing

 C. High Temperature-Resistance Bearing

 D. Corrosion-Resistant Bearing

 E. Bearing for clean Environment

 F. Bearing for Vacuum Environment