... ,High speed 3,End cover:ZZ,RS 4,Noise level:Z1,Z2 5,C2,C0,C3... groove ball bearing HX Bearings manufacture precision ... are available to meet your requirements for load, speed, torque, assembly, corrosion resistance and operating life. Our ball bearing product lines include ... 10mmInch Series Bore sizes 0.0781 to 0.375 inches high precision deep groove ball bearing