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Ningbo boeng new round of hybrid ceramic ball bearings
- Published: 16 May 2009 18:34:46
Ningbo Ben recently launched a new round of deep groove ball bearings - Hybrid ceramic ball bearing. The product inside and outside the ring for Bearing Steel Materials (Gcr15) are mainly silicon nitride ceramic balls (Si3N4), Zirconia (ZrO2), alumina (Al2O3) and so on.
The density of Si3N4 ceramics 3.20g/cm3, than the bearing steel 7.85g/cm3 density is much lower, so the effective suppression of ceramic rolling physical high-speed rotation of the centrifugal force generated to reduce the rolling body load, which greatly expanded the field of rolling bearing applications. At the same time can reduce the rolling body and raceway surface between the rotating sliding, should help to significantly improve contact fatigue life of bearings. Hybrid ceramic ball bearings can be used for high-speed operation of the required fields, such as high-speed electric spindle bearings, machine tool spindle bearing, dental drill bearings, high-speed grinding head bearings, instrument bearings, bearings, such as hard disk drives. Also be able to apply such as skates, model aircraft and electric toys and other civilian products.






