Auto wheel bearings, hub units (including generation 2ND and 3rd Our bearing have high quality low noise & conpetitive price! We sell wheel bearings, hub units (including generation 2ND and 3rd), automotive Generator bearings and various non-standard bearings. 1) Materal used: GCr15_China. (AISI)52100_American, (DIN)100Cr6_Germany. 2) Shield/closure: Open bearing, Z, ZZ, RS, 2RS. 3) Vibration and Noise level: Z1, Z2, Z3. ZV2, ZV3, Z2V2, Z3V3. 4) Precition level: ABEC1, ABEC3, ABEC5, ABEC7. 5) Files USD in; Motorcycle, Motor, Pump, Fan, Are conditioner, Microwave Oven, Rangehood, sewing machine, massage chairs, Textile machinery, Electric tools, Agriculture machinery, fitness equipment, etc. 6) Brand: "CNR" we also have ability to produce your own brand or other famous brand which you want. 7) Packing: Tube packing, individual box packing. 8) Certificates: ISO 9001: 2000.