Ceramic ball
Si3N4 Al203 Zr02 Spheric-Trafalgar

Ceramic balls are particularly suited to harsh environments. Their main advantages over steel is that they have a density of 40% lower than steel. Have 29% lower thermal expansion and are 150% harder. In certain high-speed applications their life is extended by as much as a hundred times. The three main materials used are Alumina Oxide, Zirconia Oxide and Silicon Nitride.

Material Specifications-Alumina Oxide

Composition: 99.5% Al2O3/0.5% other
Hardness: 1700 Hv
Max Work Temp: 1400oC

Material Specifications-Zirconia Oxide

Composition: 97% ZrO2/3% MgO
Hardness: 80 - 84 Ra
Max Work Temp: 2400oC

Material Specifications-Silicon Nitride

Composition: 87% Si3N4 / 13% other
Hardness: 1400 - 1700 Hv
Max Work Temp: 1000oC

Standard Grades Available

3, 5, 10, 16, 20, 28, 40, 100.