Zirconia Balls (ZrO₂)

High Precision Zirconia Balls

Zirconia ceramic possesses extremely high hardness, wear resistance, and chemical stability, enabling long-term stable operation in extreme environments. They are well-suited for applications that demand high precision and durability. The material has a density of about > 6.05 g/cm³, the hardness of about 8.5 – 9 Mohs, the fracture toughness of about 5 – 10 MPa-m^0.5, and the bending strength of 600 – 1200 MPa.

GELINDE Optical’s zirconia ceramic balls with superior wear resistance, heat resistance, oxidation resistance, and corrosion resistance against salt solutions and other chemicals. These balls retain dimensional stability at temperatures as high as 1100°C and are widely used in pumps, valves, flow meters and other components.

Specification  
Nominal Ball Diameters  0.3 – 60 mm
Maximum Allowable Deviation from Spherical Form (max)  < 0.13 μm
Maximum Allowable Variation of Ball Lot Diameter (max) < 0.25 μm
Maximum Allowable Surface Roughness Ra (max) < 0.014 μm
100% under microscopic inspection before delivery
100% clean room inspection and packing		  
Packing Method：
– Clean Vacuum Plastic Bag		  

Zirconia Ball Applications

Industry Application Why Zirconia Balls Are Used
Aerospace Bearings, Fuel Systems, Navigation Instruments High strength, resistance to extreme temperatures and corrosion, and reliability in critical applications.
Automotive Transmission Components, Fuel Injectors, Sensors Wear resistance, durability, and ability to function in high-speed, high-temperature environments.
Medical Devices Dental Implants, Surgical Instruments, Orthopedic Bearings Biocompatibility, high hardness, and resistance to wear and corrosion.
Chemical Processing Valves, Pumps, Flow Meters Chemical inertness, high resistance to corrosion, and ability to operate in harsh environments.
Oil & Gas Downhole Tools, Drilling Equipment, Seals Extreme durability, resistance to high pressure, and corrosion resistance in aggressive environments.5

FAQ About Zirconia Balls

Zirconia balls significantly enhance the performance of high-speed machinery by reducing friction and minimizing heat generation due to their low thermal conductivity. Their toughness and durability also allow them to withstand high rotational speeds without degrading, thereby extending the machinery’s operational life.

Zirconia balls offer superior toughness, corrosion resistance, and hardness compared to steel and alumina balls. Unlike steel, they do not corrode, and their hardness surpasses that of alumina, providing a longer service life and better performance in demanding environments.

Zirconia balls are most effective in environments that involve extreme temperatures, high pressure, or exposure to corrosive chemicals. Their resistance to thermal shock and chemical inertness makes them ideal for applications in chemical processing, oil and gas exploration, and other harsh industrial settings.