Experimental Study of Oil Supply Pressure Effects on Bearing Friction in Hydrodynamic Lubrication

Abstract:

Journal bearing is widely applied in most of rotating machineries for transmission of large loads at mean speed of rotation. Friction caused by the shearing condition between journal, bearing and lubricant contribute to power loses in journal bearing system. In the present study, an experimental work was conducted to determine the effect of oil supply pressure on frictional force, friction coefficient and torque of a journal bearing. A journal diameter of 100 mm with a ½ length-to-diameter ratio was used. The oil supply pressure was set at three different values (0.3, 0.5, 0.7 MPa). Frictional force and friction coefficient results for 400, 600 and 800 RPM at different radial loads were obtained. It was observed that the change in oil supply pressure has affected the fluid frictional force and friction coefficient to some extent.

• Periodical: Applied Mechanics and Materials (Volume 315)
• Pages: 977-981
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.315.977
• Online since: April 2013
• Authors: Mohamad Ali Ahmad, Salmiah Kasolang, Rob Dwyer-Joyce
• Keywords: Eccentricity Ratio, Friction Coefficient (FC), Full Journal Bearing, Lubricant Oil, Torque

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