CERBEC industrial balls are known worldwide for their extremely smooth surface finish. Our manufacturing process is totally dedicated to Si3N4 finishing. This focus yields surface finish typically < 0.10 micro inch (< 0.003 micron) consistently from batch to batch for the tens of millions of balls we produce annually. Reduced manufacturer of bearing friction from Si3N4 is a function of smooth surface finish - it must be done right all at the time. CERBEC balls have over 10 years' history of superior surface finish.
