Open form pressure balancing for compliant hydrostatic thrust bearings

Joep Nijssen*, Ron van Ostayen

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeChapterScientificpeer-review

1 Citation (Scopus)


Traditionally hydrostatic slider bearings have rigid surfaces, and therefore require a well-defined and rigid counter surface with a constant or zero curvature. However, when the counter surface has a curvature varying along the path of the hydrostatic bearing, that hydrostatic bearing needs to follow that curvature. For this bearing compliance is required. This work introduces a new principle to increase the performance of compliant hydrostatic bearings by means of open form pressure balancing. A numerical example is provided to show the potential by comparing axi-symmetric parallel bearing performance of different geometries. Using thin-film assumption, the model is solved using an elasto-hydrostatic approach. The film height, pressure profile and load capacity are presented. This work provides the initial findings for pressure balanced parallel bearings.

Original languageEnglish
Title of host publicationAdvances in Mechanisms and Machine Science
Subtitle of host publicationProceedings of the 15th IFToMM World Congress on Mechanism and Machine Science
EditorsTadeusz Uhl
Place of PublicationCham, Switzerland
ISBN (Electronic)978-3-030-20131-9
ISBN (Print)978-3-030-20130-2
Publication statusPublished - 2019
Event15th IFToMM World Congress on Mechanism and Machine Science
- Krakow, Poland
Duration: 30 Jun 20194 Jul 2019
Conference number: 15th

Publication series

NameMechanisms and Machine Science
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992


Conference15th IFToMM World Congress on Mechanism and Machine Science
Abbreviated titleIFToMM


  • compliant bearings
  • elasto-hydrostatic
  • externally pressurized bearings
  • hydrostatic thrust bearings
  • pressure balancing
  • Static balancing


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