1,groove ball bearing 2,High speed 3,End cover:ZZ,RS 4,Noise level:Z1,Z2 5,C2,C0,C3... groove ball bearing HX Bearings manufacture precision ball bearings from 3mm to 500mm O.D. Production standards as well as custom designs are available to meet your requirements for load, speed, torque, assembly, corrosion resistance and operating life. Our ball bearing product lines include: miniature & ...