Ceramic Bearing Material

Ceramic bearings hard surfaces at high temperatures waukesha bearings applies ceramic and cermet ceramic metallic composite materials to thrust and journal bearing designs to extend bearing capabilities in applications where traditional materials and polymers fall short.

Ceramic bearing material.

Typically all ceramic bearings are used in specialist high temperature high speed applications where the design requirements are very strict and hence can be costly. Bearings made with ceramic materials fall into a specialty niche in the bearing industry. Full ceramic bearings have races and balls that are made entirely of ceramic material and are superior to common steel bearings in many ways. We construct the rolling elements in ceramic bearings using several ceramic materials including silicon nitride si3n4 aluminum oxide al2o3 zirconium oxide zro2 silicon carbide sic applications that involve high speeds and high loads often involve ceramic bearings.

The most common arrangement is a hybrid bearing usually with stainless steel rings and ceramic balls. Balls made from this material are hard up to rc78 and have a very smooth surface. Furthermore the weight of ceramic bearings is also lighter. The most common ceramic material used is silicon nitride.

Silicon nitride sin4 alumina oxide al2o3 zirconia oxide zro2 silicon carbide sic. Zirconia oxide bearings silicon nitride bearings and hybrid bearings ceramic steel or chrome. Ceramic is the perfect material for any application seeking to achieve higher rpm s reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. There are a number of commercially available ceramic bearing types grouped into one of two categories.

Hybrid bearings consist of ceramic rolling elements in steel races whilst all ceramic bearings have both races and rolling elements made from ceramic.