Angular Contact Ball Bearing:1-Wide Applications:machine tool main shaft, high frequency motor, internal combustion turbine, oil pump, air compressor, printing machinery, etc. 2-R&D Capability:a complete set of advanced CNC machines, inspection instruments and devices, and professional technical team.3-Good Quality:ISO9001:2000& TS16949.4-Nice Price5-Good Service:professional person solve the problems for the customers asap on line.6-Many Styles:accoring to our customer's requirements