Technical Ceramics

Ball Bearings

Roller Bearings

Bearing Parts & Accessories

Technical Data

  • Density: ~6.0 g/cm³

  • Hardness: ~1,200 HV (Vickers)

  • Flexural Strength: 900–1,200 MPa

  • Compressive Strength: >2,000 MPa

  • Fracture Toughness (KIC): 7–10 MPa·m¹/²

  • Elastic Modulus (Young’s Modulus): ~200 GPa

  • Coefficient of Thermal Expansion (CTE): ~10 × 10⁻⁶ /K (20–400 °C)

  • Thermal Conductivity: ~2–3 W/m·K (very low compared to metals)

  • Maximum Operating Temperature: up to 600–800 °C (depending on design and load)

  • Corrosion Resistance: Excellent against acids, alkalis, and seawater

  • Electrical Properties: Electrical insulator (volume resistivity >10¹² Ω·cm)

Ceramic Shaft/Piston

A ceramic shaft, also known as a ceramic piston, is made from zirconium dioxide (ZrO₂), a high-performance advanced ceramic. It offers excellent wear resistance, high hardness, and superior corrosion resistance, making it ideal for demanding applications. With its ability to operate under high temperatures and aggressive chemical environments, the ZrO₂ ceramic shaft is widely used in pumps, medical devices, chemical processing equipment, and precision machinery. Its low friction and long service life make it a reliable alternative to traditional metal components.

Material:

Made of ZrO2

Applications:

  • Pumps & valves – chemical, dosing, and marine pumps.

  • Bearings & rotors – high-speed, high-temperature machines.

  • Seals & sleeves – mechanical seals in corrosive media.

  • Motors & automotive – turbochargers, fuel and coolant pumps.

  • Medical & lab – surgical tools, dental devices, stirrers.

  • Electronics & energy – insulating parts, fuel cell systems.

  • Aerospace & precision equipment – high strength, thermal shock resistant shafts.

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