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; Motocycle, 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
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