Ceramic Balls for Pumps, Valves and Bearings
REDHILL supplies precision ceramic balls in silicon nitride, zirconia and alumina. These materials differ in weight, toughness, heat resistance and chemical compatibility. Therefore, choose the ceramic to suit the fluid, load and operating temperature.
Applications of Ceramic Balls
Chemical Pumps and Valves
Ceramic balls serve as check elements in chemical pumps and dosing valves. For example, alumina and zirconia suit many fluid control duties. However, resistance to acids, alkalis and solvents depends on the ceramic grade. Therefore, check the fluid, concentration and temperature when choosing the material.
Bearings and Precision Mechanisms
Silicon nitride balls weigh less than steel balls of the same size. As a result, they reduce centrifugal forces in high-speed bearings. In addition, their high stiffness and low thermal expansion support precise bearing operation.
Material Options
- Silicon Nitride (Si₃N₄): Low weight, high stiffness and electrical insulation for bearing applications.
- Zirconia (ZrO₂): Wear resistance for pumps, valves and precision devices.
- Alumina (Al₂O₃): Hardness, wear resistance and electrical insulation for fluid handling parts.
Sizes and Precision Requirements
Specify the diameter, ceramic grade, precision grade, surface finish and quantity. In addition, include the load, speed, fluid and operating temperature.
Finally, send us any drawings or custom size requirements. We can then confirm suitable options, availability and lead time.
