Wear scars on each of the bottom three balls are individually measured after a four ball wear test. Users can do this manually using an optical microscope. Those results can be added to the analysis report to complete the final test documents. A digital image analysis can be used to acquire image and measure the scars diameters improving repeatability and reproducibility. The acquired image can be attached to a report of the four ball wear test.

In Extreme Pressure (EP) tests the lubricant is subjected to a load that is increased in specific steps after every run of the four ball test machine. This increased load is continued until the load is reached where the lubricant fails. The failure of the lubricant is indicated by welding of the bottom three balls to the top ball. The load at which welding occurs in the index of extreme pressure property of the lubricant.

The Four Ball Test Machine permits measurements of actual load, RPM and temperature.Frictional torque during the test is also measured. All of these parameters, displayed during thetest, are acquired for displays and analysis, the data can be transferred via USB/LAN Datatransfer.

The post Four-Ball Automatic Test Machine appeared first on Ayalytical.