... 3.NACHI BRAND 1.good NACHI ball bearing/motor bearing 2.Details Product namegood NACHI brand ball beairng in motors, automobiles,motorcycles,industries ... ,RZ,RS,2RS,2RZ,NBall row numberSingle row and double rowFeaturesbear axial and radial loads. It’s still working ... ring tilt does not exceed 1 ° ~ 2.5 °Applicationin bearing heavy load and shock load, precision instruments, low noise motors, automobiles ...