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In Tribology, a flat or a sphere shaped indenter is loaded on to the
test sample with a precisely known weight. A pin is mounted on a stiff
lever, designed as a friction less force transducer. As the sample is
either rotating or sliding, resulting frictional forces acting between
the pin and the sample are measured by very small deflections of the lever.
Wear coefficients for both the sample and material are calcu- lated from
the volume of the material lost during a specific friction run.
This simple method facilitates the determination and study of friction
and wear behavior of almost every solid state material combination, with
varying time, contact pressure, velocity, temperature, humidity, lubricants,
etc.
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