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Nicola Symonds


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Sliding Wear and Friction

We have the facilities and expertise to offer wear and friction measurements. This allows a comparison of two materials sliding against each other

Talk to us about sliding wear

How we measure wear and friction

Our sliding wear apparatus can create different conditions: pin, line or area contact on either reciprocating or rotating plates. In every case, we can determine the wear rates and record friction measurements. We can also control many test parameters to simulate the real environment.

Wear rates can be assessed both by the mass loss of the pin and through 3D profilometry of any wear scars present in the plate. We record static and dynamic coefficients of friction during testing together with noise made by the sliding contact.

  • We can carry out wear and friction measurements. This allows a comparison of two materials sliding against each other.

Ranking of materials

Our specialist engineers can use their experimental data to provide a ranking and also examine the worn surfaces. Using material characterisation techniques, we can interpret wear processes and give you an opinion on why the materials ranked the way they did.


TE77 Computerized control

The TE77 reciprocating tribometer

Controllable Parameters

  • Relative speed: up to 14 m/s
  • Sliding distance
  • Contact area
  • Loading fixed or variable: up to 1000 N
  • Lubricated or dry
  • Submerged in a bath or dripped lubricant
  • Room temperature, chilled or heated: up to 600°C
  • Pin material and finish
  • Plate material and finish
  • The TE77

    The Te77 is fully computer controlled with the ability to record at high sampling frequencies many test parameters such as friction, load, temperature, sliding speed etc.

  • Plan view

    Plan view of the stage with the head and loading arm moved back.

  • Stroke lengths

    We can remove the oil and replace the cam to provide a range of stroke lengths.

  • Torque

    We can fit a 20:1 reduction gearbox to provide more torque during low speed friction tests.

  • Temperature

    We have a heated plate that can take the base plate sample up to 600 degC.

  • Pin options

    Example of white plastic pin which has suffered material transfer after dry sliding on a black plastic plate.

  • Sound probe

    We also have the equipment to record sound levels during sliding tests to quantify the level of any squeaking that occurs.