The effect of helical groove geometry on journal abrasive wear

The article presents an experimental study of slide bearings operating in lubricant contaminated by Al2O3 abrasive particles. The aim of this work was the comparison of wear resistance of slide bearings with different surface geometry on the journal. It was found that helical groove on the journal significantly reduced wear of sliding pairs. The results of experiments showed that groove cross section area and helical groove lead affected abrasive wear. Valuable results concerning the sleeve wear reduction were obtained with respect to bearings with textured journals.

► Wear intensity depends on geometry of the groove on the surface journal.
► Decrease in journal wear was found for suitably chosen shape and lead of the groove.
► The helical groove application on the journal resulted in decrease in sleeve wear.
► Decrease in journal and sleeve wear was obtained for bearings with textured journals.