Assessment of polymer composites for hydrodynamic journal bearing applications
2008 (English)Conference paper (Other academic)
Polymer composites are employed as facing materials in hydrodynamic bearings for their low friction and "compliant" properties which play an important role during machinery operation. In journal bearings, this low friction property can be of significant importance during start and stop cycles when insufficient oil is available to fully separate the surfaces in relative motion. Current work is aimed at determining a suitable material for use in hydrodynamic journal bearings. This study investigates friction and wear encountered during the transition from the stationary state to operational speed (acceleration) during initial start-up. This is examined for virgin PTFE together with a series of commercially available PTFE-based composites and a babbitt material in boundary / mixed lubrication conditions. Tests are performed using a standard laboratory block-on-ring test apparatus with a VG32 mineral oil.
Place, publisher, year, edition, pages
2008. Vol. :13
IdentifiersURN: urn:nbn:se:kth:diva-80653OAI: oai:DiVA.org:kth-80653DiVA: diva2:496621
Nordic Symposium on Tribology, 13. Tampere, Finland. 10-06-08 → 13-06-08
QC 201205092012-02-102012-02-102012-05-09Bibliographically approved