Super-Precision Contact Ball Bearings Hybrid Spindle Bearings

Hybrid spindle bearings have rings made of bearing steel and rolling elements made of bearing grade silicon nitride (Si3N4). hybrid spindle bearings are used to meet the requirements of particularly demanding applications.

Ceramic balls used in place of steel balls can radically improve bearing performance in several ways:

 
• Low vibration and noise. Vibration levels can be up to seven times lower than conventional steel ball bearings due to the almost perfectly smooth finish and exceptional geometry of ceramic balls. 。High running speeds. Ceramic hybrid bearings run at significantly lower operating temperatures with reduced internal loading due to a 60% lower ball mass than steel, allowing running speeds to increase by up to 50%.
 
• Low wear and long operating life. Bearings with ceramic balls have been proven to last up to five times longer than conventional steel ball bearings. The inherent properties of silicon nitride mean the balls drastically reduce the predominant cause of surface wear in conventional bearings. Lower operating temperatures also help extend lubricant life and they provide excellent performance where there is insufficient lubrication.
 
• Systems equipped with ceramic hybrids show higher rigidity and a higher natural frequency making them less sensitive to vibration.