Table of Contents
ISRN Tribology
Volume 2013, Article ID 560917, 6 pages
Research Article

Pressure Distributions Generated along a Self-Acting Fluid-Lubricated Herringbone-Grooved Journal Bearing with Trapezoidal Groove

1Tochigi Research & Development Center, Keihin Corporation, 2021-8 Hoshakuji, Takanezawa-machi, Shioya-gun, Tochigi 329-1233, Japan
2Department of International Development Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan

Received 31 October 2012; Accepted 20 November 2012

Academic Editors: M. Dular and L. Qian

Copyright © 2013 Jun Liu and Yoshihiro Mochimaru. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Numerical studies are carried out to investigate pressure distributions of a fluid-lubricated herringbone-grooved journal bearing with trapezoidal grooves of various angles. Additionally, the optimal trapezoidal groove geometry is discussed in terms of the radial load capacity and friction torque.