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Schunk Portugal - Mechanical Engineering


The business unit Tribology offers a wide range of products.

Schunk Tribology is highly experienced in sliding materials for bearns, pumps and compressors as well as in hard and soft sliding combinations and mating materials.

Our highly wear-resistant bearing rings and seal rings made of carbon, graphite and silicon carbide are developed for applications with highest requirements.


  • Radial Bearings
    with and without lubrication grooves
  • Axial Bearings
    with and without lubrication grooves
  • Bearings
    with and without sleeves/holders

Seal Rings

  • Rings for axial seals
  • Rotary Shaft Contact and Gap Seals

Micro components


Pressed- to- size micro bearings for KW-meters as well as location bearings with inside diameters of 0.4 mm and heights of 0,1 mm; no further machining necessary

The materials are adapted to the application.


Compression molded - AI2O3 components with dimensions from less than < 1mm up to several millimeters

Vanes and Pumps


  • Control Discs
  • Sleeves
  • Structural parts
  • Friction rings
  • Pistons

Fiber-Reinforced Composite Materials

  • Rotor sleeves
  • Reinforcement Sleeves
  • Radial bearings and sleeves (also out of ceramic matric composite)
  • Thrust bearings (also out of CMC)
  • Slide liners (also out of CMC)

Other Products

Graphite Vanes

Carbon vanes for dry-running compressors and vacuum pumps as well for liquids.

Graphite Pumps Components

  • Valves and Insulation Vanes
  • Rotors
  • End-Plates
  • Housings

© 2019, Schunk Portugal, Lda.