High contact pressure pin-on-disk tribology
Industrial applications such as transmission gears, cutting tools or ball bearings involve sliding with high contact pressure. To simulate such specific friction conditions, pin-on-disk tribometers are often used. This application report demonstrates the use of the TRB3 and THT pin-on-disk tribometers for simulation of applications with high contact pressure – at relatively low loads.
Since the 1990s, Anton Paar has been at the forefront of frictional testing innovation, with the introduction of the first commercial pin-on-disk tribometer (TRB³). Due to its wide range of test conditions, contact geometries, and add-on options, the TRB³ enables users to conduct tribology testing that closely mimics real-world scenarios. Its array of parameter selections includes diverse movement modes (rotation, angular or linear), sliding speed, normal loads, duration and environmental conditions (lubrication, temperature), facilitating precise and comprehensive measurements of frictional properties across a broad spectrum of applications. Among all tribological applications, those related to high contact pressure are taking a special place. These applications include mainly automotive industry, cutting tools, aerospace, wind turbines, bearing characterization, and firearms. High pressure is more likely to create rapid damage to the parts in contact compared to lower pressure applications and therefore tribology testing at high pressure is crucial. However, high pressure tribological test is still often confused with a high load tribological test – which is not necessarily required for simulating high contact pressure.
The goal of this application report is to show the load and pressure considerations in order to simulate high pressure tribological tests. It demonstrates that high contact pressure can be reached with relatively low loads.
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