The Effects of Oil Supply Pressure at different Groove Position on Temperature and Pressure Profile in Journal Bearing

The effects of oil supply pressure on the temperature and pressure at different groove locations on a hydrodynamic journal bearing were investigated. a journal with a diameter of 100 mm and a ½ length-to-diameter ratio was used. the supply pressure was set to 0.2, 0.5, and 0.7 mpa at seven different groove locations, namely, -45°, -30°, -15°, 0°, +15°, +30°, and +45°. temperature and pressure profiles were measured at speed values of 300, 500, and 800 rpm with 10 kn radial load. the results show that the change in oil supply pressure simultaneously reduced the temperature and increased the pressure profile.