EFFECTS OF HARDER, STIFFER, SMOOTHER SURFACE & INERT MATERIAL: Cerbec balls are over 100% harder than steel balls. In a hybrid bearing, the extremely hard and smooth CERBEC Ball keeps raceways clear of contaminants by pushing them away from the contact patch. In addition, the CERBEC ball remains extremely smooth, preventing ball to race damage. For the end user, this means reduced bearing wear and longer bearing life at high precision. * Vickers Hardness 10 KG Load Cerbec = 1550 Steel = 730

Courtesy of SNFA Bearings