Performance parameters and promotion of silicon nitride all ceramic bearings
  • 2012-02-12

Performance parameters and promotion of silicon nitride all ceramic bearings

Silicon nitride all-ceramic bearing rings and rolling elements are made of silicon nitride (SI3N4) ceramic material, and the holder is made of polytetrafluoroethylene (PTFF) as standard. GRPA66-25, PEEK, PI, and phenolic clips are also generally used. Cloth bakelite pipe, etc. Compared to ZrO2, SI3N4 full ceramic bearings are suitable for higher speed and load capacity, as well as for higher ambient temperatures. At the same time, it can provide precision ceramic bearings for high-speed, high-precision and high-rigidity spindles with the highest manufacturing precision up to P4 to UP. Filled with ball full ceramic bearing filled with ball-shaped all-ceramic bearing with a ball gap on the one side, because of the cage-free design, it can load more ceramic balls than the standard structure bearing, thus improving its radial load capacity, in addition It can avoid the corrosion resistance and temperature resistance of the ceramic cage type all-ceramic bearing due to the limitation of the cage material. This series of bearings is not suitable for higher speeds. When installing, care should be taken to install the notched surface on the end that does not bear axial load. Because the inner and outer rings of the bearing have a spherical gap, it is not suitable for applications with large axial loads. Ceramic cage All ceramic bearing ceramic cage has the advantages of wear resistance, high strength, corrosion resistance and self-lubrication. All ceramic bearings made of ceramic cage can be used for extremely strong corrosion, ultra high temperature and high vacuum. Environment, commonly used cage ceramic material is ZrO2.


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