Bearings, ceramic static load rating

In this section, noticing the occurrence of cracks in silicon nitride, the static load rating was studied for an all ceramic bearing, in which silicon nitride is used for the inner and outer rings and balls. (This is because if silicon nitride is loaded, cracks appear usually without the occurrence of permanent deformation.) [7, 8]. 

Consequently, it can be seen that an all-ceramic bearing made of silicon nitride can well withstand the same load as the static load rating of a conventional steel bearing, and that there are no problems at all in their practical use in terms of their static load rating. 

Static Load Rating of Hybrid Ceramic Bearing... 

Thus, the static load rating of hybrid ceramic bearings is limited by the deformation of steel races. Therefore, the static load rating of hybrid ceramic bearings is 0.85 times the static load rating of steel bearings. 

TABLE 11.1.4 Static Load Rating of Ceramic Rolling Bearings... 

Fujiwara, T., Yoshioka, T., Kitahara, T., Koizumi, S., Takebayashi, H., and Tada, T. (1988). Study on load rating property of silicon nitride of rolling bearing materials, J. JSLE 33 301. Yoshioka, T., Kitahara, T., Takebayashi, H., and Yuine, T. (1989). A new method for static load rating of ceramic rolling bearing. Wear 133 373. 

---