Ceramic Ball Bearings

High speed, high rigidity and high reliability are all achieved using ceramic rolling elements. Ceramic hybrid bearings have many excellent performance characteristics such as heat resistance, extended life, light weight, lower thermal expansion, electrical non-conductance and thus can be used in an infinite number of applications as a new generation material. NSK’s early experience of materials and bearing manufacturing led us to utilize one ceramic in particular, silicon nitride (Si3N4), for the rolling elements in ceramic hybrid bearings. These hybrid bearings have earned an excellent reputation for ultra high speed combined with ultra high accuracy; a performance combination that is not achievable in bearings with steel rolling elements.