PG-2 1Ł - test rig for journal bearings
Test rig PG II 1Ł is used for determination of static characteristics of journal sliding bearings. The stand is computer controlled with internal feedback loop for input parameters adjustment and has a computerised data acquisition (high repeatability of test conditions and immunity to interference). Radial force and rotational speed can be changed according to a pre - programmed function. Bearings can be tested with oil or water lubrication (important for ceramic and composite bearings). The stand is equipped with an accurate friction force sensor. The tested bearing is fixed in a rigid housing, which is supported on hydrostatic bearing. Rotational speed is controlled by a vector type frequency inverter, which allows to test fully loaded bearings in start - up and stop conditions.
Schematic view of test head (click sketch to enlarge):
Photo of test head:
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Examples of the research: