In order to prolong rolling bearing fatigue life under mixed or boundary lubrication conditions, we have developed a specific smooth surface with small indentations by using the concept of micro EHL (elastohydrodynamic lubrication). These indentations or pits act as a carrier of lubricant from the inlet to the inside of the contact area. Therefore, lubrication performance of this surface is better than that of a superfinished surface.We have already demonstrated the ability of forming an oil film using this proposed surface. However, reliability of fatigue life for this surface was not sufficiently investigated. Therefore, we have conducted several rolling bearing fatigue life tests with this surface as compared to a superfinished surface. Lambda values of these tests were from 0.45 to 2.10. Results of these tests indicated that the life of the bearings containing rollers with this surface texture was between 2.0 to 13 times longer than that of normal bearings.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improvement of Roller Bearing Fatigue Life by Surface Roughness Modification


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Earthmoving Industry Conference & Exposition ; 1991



    Publication date :

    1991-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Improvement of Roller Bearing Fatigue Life by Surface Roughness Modification

    Akamatsu, Y. / Tsushima, N. / Goto, T. et al. | British Library Conference Proceedings | 1991


    Interference Fits And Roller-Bearing Fatigue

    Coe, Harold H. / Zaretsky, Erwin V. | NTRS | 1988


    Improvement of Rolling Contact Fatigue Life of Carburized Tapered Roller Bearings

    Nakashima, H. / Maeda, K. / Tsushima, N. | SAE Technical Papers | 1986


    Improvement of Rolling Contact Fatigue Life of Carburized Tapered Roller Bearings

    Tsushima,N. / Nakashima,H. / Maeda,K. et al. | Automotive engineering | 1986


    The Effect of Fire Resistant Hydraulic Fluids on Tapered Roller Bearing Fatigue Life

    Culp, David V. / Widner, Ronald L. | SAE Technical Papers | 1977