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Zirconia balls feature resistance to abrasion and corrosion and are chemically inert to molten metals, organic solvents, caustics, and most acids.  In addition, zirconia balls maintain high strength at temperatures up to 982ºC (1800 ºF).

Applications for Ceramic Balls

The GlobalSpec SpecSearch database contains information about applications for ceramic balls, many of which are used as bearings. The following list provides some examples.

• Ceramic aerospace bearings are used in airframes as well as gyroscopes (gyros), navigation systems, flow meters, avionic instruments, and other aerospace parts.
• Agitator balls have suitable corrosion and density (weight) for agitation or mixing applications, such as the balls used in aerosol paint cans. 
• Ceramic automotive bearings are used with seating tracks and seat slides, safety restraints and seatbelt locking mechanisms, airbags, constant velocity (CV) joints, double offset joints, tripod joints, cross groove joints, spindle bearings, and many other systems.
• Conveyors balls are used in conveyors, ball transfer units, roller table, casters, roller or lazy Susan applications.
• Spring loaded balls are used in quick disconnect couplings or snap on fasteners and fastening systems. Socket wrenches often use this type of fastening mechanism to hold onto the socket.