The principal factors that influence the progress and results of the measurements on the laboratory tribotester
are: pinch ring test sample, wear conditions, cutting environment, measuring devices, equipment and instruments.
A four-ball type tribotester
was used to perform tribological tests.
Tribological performance tests have been conducted on four-ball tribotester
(FBT) using the standard wear test procedure as mentioned in ASTM D: 4172B.
Using a ball-on-disk type tribotester
, the frictional properties of the DLC films were evaluated under dry and boundary lubrication conditions.
Tribological tests were performed using a fourball type tribotester
. The balls of 12.7 mm diameter were made of 100Cr6 bearing steel (E = 21.98T04 MPa; v = 0.3).
Also, the same trends are, for instance, observed in  even though a ball-on-disc tribotester
Evaluation of tribological parameters was carried out by tribotester
Falex (T-09 ITE Radom).