Tribology cell

A measuring cell has been developed for testing the tribological behaviour of bearing materials with Haake Mars, RheoStress 6000 and other predecessor rheometers with a normal force sensor.

The tribology cell consists of a lower and an upper part. Both are made of stainless steel. The lower measuring geometry is designed as a reservoir.

Measurement of the friction of bearing materials with and without lubricant can be performed. To measure the influence of a lubricant, the reservoir can be filled with the lubricant to be tested.

The upper measuring geometry is equipped with a flexible shaft that ensures the concentric position of a ball with a diameter of 1.27 cm in the measuring cell. Usually steel bearing balls are used, but other materials like ceramic are also possible.

To facilitate performing every test with a fresh ball as recommended, replacing the ball is a quick, simplified process.

For temperature-dependent tests between -40 and +200 °C, the lower measuring geometry can be adapted to a modified measuring plate cover for a peltier temperature control unit.