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; Motocycle, Motor, Pump, Fan, Are conditioner, Microwave Oven, Textile machinery, Electric tools,     msn: paipai1011 atlivedotcn

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