MetalBall is a french manufacturer of high precision ceramic balls (silicon nitride ball -Si3N4 ball) for ball bearing and ball screw. Our manufacturing process can obtain a higher surface quality than the current standard. In addition to our visual inspection, we can perform a fluorescent penetrant inspection (certified NADCAP) to guarantee the absence of “C-crack”.
We are also able to supply aluminium oxide (Al2O3) and zirconium oxide (ZrO2) balls.
|Material||Ceramic grade||Density (Kg/dm3)||Hardness|
|Ceramic balls||Silicon Nitride Si3N4 balls – Class I ASTM F2094||3,26||1400-1600 HV|
|Alumina Oxide – Al2O3 balls||3,90||1250 -1700 HV|
|Zirconium Oxide -ZrO2 balls||6,00||1200 HV|
|Silicon Carbide -SiC balls||3,15||2200-2800 HV|
For industrial applications we can supply the balls via our Supply Chain. In all cases, each batch is validated by our certified quality system based on aeronautical requirements.