Open Form Pressure Balancing for Compliant Hydrostatic Thrust Bearings

  • Joep NijssenEmail author
  • Ron van Ostayen
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 73)


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.


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


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Delft University of Technology, Section of Precision and Microsystem EngineeringDelftThe Netherlands

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