Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Design of logarithmic crowned roller for tapered roller bearings based on the elastohydrodynamic lubrication model

Design of logarithmic crowned roller for tapered roller bearings based on the elastohydrodynamic... The purpose of this paper is to study the film-forming capacity of logarithmic crowned roller for tapered roller bearing (TRB) and to design a tapered roller profile based on an elastohydrodynamic lubrication model.Design/methodology/approachA coupled model, incorporating a quasi-static model of TRBs and an elastohydrodynamic lubrication model was developed to investigate the load distribution of TRB and to evaluate the lubrication state of tapered roller/raceway contact.FindingsThe model is verified with published literature results. Parametric analysis is conducted to investigate the effect of crown drop on azimuthal load distribution of the roller, film thickness and pressure distribution in the contact area. The result shows that crown drop has little influence on the azimuthal load distribution; also, the film thickness and the pressure distribution are asymmetric. When the tapered roller is designed and manufactured, the crown drop of the small end should be larger than that in the large end.Originality/valuePrecise roller profile design is conducive to improve the fatigue life of TRBs. Currently, most crown design methods neglect the influence of lubrication, which can lead to a non-suitable roller profile. Therefore, the present work is undertaken to optimize roller profiles based on lubrication theory. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Design of logarithmic crowned roller for tapered roller bearings based on the elastohydrodynamic lubrication model

Download PDF
8 pages

Loading next page...
 
/lp/emerald-publishing/design-of-logarithmic-crowned-roller-for-tapered-roller-bearings-based-y8OQLpyoW4
Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0036-8792
DOI
10.1108/ilt-08-2020-0315
Publisher site
See Article on Publisher Site

Abstract

The purpose of this paper is to study the film-forming capacity of logarithmic crowned roller for tapered roller bearing (TRB) and to design a tapered roller profile based on an elastohydrodynamic lubrication model.Design/methodology/approachA coupled model, incorporating a quasi-static model of TRBs and an elastohydrodynamic lubrication model was developed to investigate the load distribution of TRB and to evaluate the lubrication state of tapered roller/raceway contact.FindingsThe model is verified with published literature results. Parametric analysis is conducted to investigate the effect of crown drop on azimuthal load distribution of the roller, film thickness and pressure distribution in the contact area. The result shows that crown drop has little influence on the azimuthal load distribution; also, the film thickness and the pressure distribution are asymmetric. When the tapered roller is designed and manufactured, the crown drop of the small end should be larger than that in the large end.Originality/valuePrecise roller profile design is conducive to improve the fatigue life of TRBs. Currently, most crown design methods neglect the influence of lubrication, which can lead to a non-suitable roller profile. Therefore, the present work is undertaken to optimize roller profiles based on lubrication theory.

Journal

Industrial Lubrication and Tribology – Emerald Publishing

Published: Aug 3, 2021

Keywords: EHL; Logarithmic profile; Optimum design; Tapered roller bearing

References

  • A dynamic analysis of tapered roller bearing under fully flooded conditions part 1: theoretical formulation
    Creju, S.; Bercea, I.; Mitu, N.
  • A dynamic analysis of tapered roller bearing under fully flooded conditions part 2: results
    Creju, S.; Bercea, I.; Mitu, N.
  • Equilibrium and associated load distribution in ball and roller bearings loaded in five degrees of freedom while neglecting friction – part II: application to roller bearings and experimental verification
    De Mul, J.; Vree, J.; Maas, M.
  • Contributions of molecular dynamics simulations to elastohydrodynamic lubrication
    Ewen, J.P.; Spikes, H.A.; Dini, D.
  • Dynamics of rolling-element bearings – part I: cylindrical roller bearing analysis
    Gupta, P.K.
  • On the dynamics of a tapered roller bearing
    Gupta, P.K.
  • Analysis of tapered roller bearings considering high speed and combined loading
    Liu, J.Y.
  • Dynamic capacity of roller bearings
    Lundberg, G.; Palmgren, A.
  • On friction reduction by surface modifications in the TEHL cam/tappet-contact-experimental and numerical studies
    Marian, M.; Weikert, T.; Tremmel, S.
  • Effect of roller profile on cylindrical roller bearing life prediction – part I: comparison of bearing life theories
    Poplawski, J.V.; Peters, S.M.; Zaretsk, E.V.
  • A general finite volume method for the solution of the reynolds lubrication equation with a Mass-Conserving cavitation model
    Profito, F.J.; Giacopini, M.; Zachariadis, D.C.
  • Correlational aspects of the viscosity-temperature-pressure relationship of lubricating oils (Dr in dissertation at technical university of delft, 1966)
    Roelands, C.J.A.
  • Optimization of partially crowned roller profiles for tapered roller bearings
    Tong, V.C.; Hong, S.W.
  • Characteristics of tapered roller bearing with geometric error
    Tong, V.C.; Hong, S.W.
  • The effect of angular misalignment on the running torques of tapered roller bearings
    Tong, V.C.; Hong, S.W.
  • Study on the stiffness and fatigue life of tapered roller bearings with roller diameter error
    Tong, V.C.; Hong, S.W.
  • Optimum design of the roller profile based on the elastohydrodynamic lubrication model
    Wang, Z.; Chen, X.; Shen, X.; Zhou, L.
  • Study on logarithmic crowning of tapered roller profile considering angular misalignment
    Wu, Z.; Xu, Y.; Liu, K.
  • An analysis of elastohydrodynamic film thickness in tapered roller bearings
    Yamashita, R.; Dowson, D.; Taylor, C.M.
  • Internal loads and contact pressure distributions on the main shaft bearing in a modern gearless wind turbine
    Zheng, J.; Ji, J.C.; Yin, S.; Tong, V.C.