water pump bearing for automobile:
1. TS16949 and ISO9001:2000 certified
2. OEM supplier
3. R&D capability
4. Materials:Gcr15-China, 52100-America, 100Cr6-German
5. Cages: nylon66
6: Seals: buna nitrile or Teflon for high demands
7. Radial clearance: normally 15-35um,no load
8.Vibration and noise: vibration is controlled within 45dB,and for small size bearings we can control it below 30dB .
9. Lubrication: high dropping point,thickener,imported greases
10. seals are used with big overload and radial contact.
11. 15 years manufacturing history