| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 614498 | Tribology International | 2015 | 7 Pages |
•The hybrid PTFE/aramid fabric liners were creatively modified by ultrasonic.•Tests about the radial spherical plain bearings with the liners were carried out.•Continuous and stable PTFE transfer films formed in shorter time on wear surfaces.•Abrasion resistance of the liners can be improved by ultrasonic modification.
PTFE/aramid woven fabric liners were modified by ultrasonic. With self-made wear tester, tribological properties of the self-lubricating radial spherical plain bearings with modified and unmodified liners over swivel times were investigated. With scanning electron microscope and energy disperse spectroscopy, the film-forming mechanisms were analyzed. Results show: ultrasonic modification can improve tribological performances of the liners. Through ultrasonic modification, continuous and stable PTFE transfer films which had better wear resistance formed in a shorter time. Bearings with modified liners occurred slight adhesive wear, while the bearings with unmodified liners occurred serious adhesive wear and abrasive wear during the test process.
