Shafts, plungers, bearing sleeves

Shafts, pistons, and bearing sleeves made of technical ceramics are essential components for mechanical systemsthat require maximum load-bearing capacity, precision, and durability. They serve as sliding or sealing elements in rotating and oscillating applications and ensurereliable operation even under extreme conditions.
 
Thanks to their exceptional material properties, they minimize downtime, reduce maintenance costs, and increase efficiency in demanding processes.

Advantages at a glance

Compared to metal or plastic-based variants, ceramic parts offer a unique combination of mechanical, chemical, and thermal properties that minimize failures and increase efficiency. The main advantages are:

High wear resistance & hardness:

With Vickers hardness, ceramics resist abrasion and mechanical stress; service life up to 10 times longer than metal (millions of cycles in pumps).

Corrosion and chemical resistance:

Resistant to acids, alkalis, salt water, and cleaning agents; ideal for aggressive industrial and medical environments without rust or degradation.

Precision and low friction:

Sliding friction coefficient < 0.1 reduces energy losses and heat generation; manufacturing tolerances < 1 μm for low-vibration, precise movements.

Thermal stability:

Resistant to temperatures up to 1,200 °C with high thermal shock resistance; suitable for high-temperature applications such as engines or sterilization processes.

Suitable for your application too?

Areas of application

Pumps and fluid systems

  • Bearing sleeves and shafts are used in water pumps, oil pumps, and high-pressure cleaners, while plungers are used in high-pressure pumps for chemical, petrochemical, and food processes to precisely meter or convey aggressive media.
Automotive and mechanical engineering
  • Shafts and bearing sleeves are used in fans and motors, while plungers ensure precise movements under high loads in automotive components such as injection systems or brakes.

Medicine, Robotics & Optics:

  • Pistons are used in syringes, infusion pumps, and diagnostic devices, while bearing sleeves are used in high-precision applications such as robotics and optical systems—anywhere where maximum hygiene and absolute corrosion resistance are crucial.
Keramische Wellen, Plunger & Lagerhülsen – Präzise & extrem belastbar

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