Ceramic balls, Booth D-4345.

When applied in hybrid bearings with steel races, CERBEC ceramic bails offer durability, lower thermal expansion, higher hardness and stiffness, lighter weight, increased corrosion resistance and higher electrical resistance. They are well suited for high-speed operation. One company that uses these balls offers ballscrews up to 1800 KN and axial speeds between 150 and 160 m/min, with 3G acceleration.

Saint-Gobain Advanced Ceramics, Granby, CT Circle 183, or www.rsleads.com/409df-183

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