Reichert Friction Wear Balance (RVW)

The friction wear balance is a relatively simple test device for investigating the high-pressure lubricity of oils and emulsions.

A rotating steel test specimen is one-third immersed in the test liquid contained in a tank. Against it, a steel cylinder is pressed with crossed axis. The wear dome forming on the cylinder in the course of 100 m sliding distance is measured.

The purpose of the test is to determine the wear-reducing properties of lubricants.

In the meantime, the so-called Brugger test, which works with the same specimen arrangement as the RVW, has even been standardized in DIN 51 347.

Test bench parameters Reichert RVW
Sliding speed 1.7 m/s (speed 900 1/min)
Load 200, 300 or 600 N
Temperature 0 to 120 °C
Movement types Glide
Friction conditions Solid, boundary and mixed friction
Contact geometry Point contact
Measured variables Noise meter, wear calotte
Standard conditions 950 rpm and 300 N (other loads optional)

Other tests

  • Determination of wear characteristics of lubricants and cooling lubricants in the mixed friction area
  • Investigation of the load carrying capacity and the effect of extreme pressure additives.

Possible specimen geometries