Silicon nitride all-ceramic bearing rings and rolling body are made of silicon nitride (Si3N4) ceramic materials. Rpa66-25, PEEK, PI and bakelite pipe can also be used in general.
SiN4 all-ceramic bearings are suitable for higher speed and load capacity as well as higher ambient temperatures compared to ZrO2 materials.
Precision ceramic bearings for high speed, high precision and high rigidity spindles are also available, with the highest manufacturing accuracy UP to Grade P4 to UP.