A significant variation in oil film temperature has been observed in hydrodynamic journal bearings. Here, a journal bearing test rig has been developed to measure the oil film temperature on the three circumferential planes of the journal bearing. Further, an elliptical journal bearing with D_(Imin) = 65.2 mm, OD = 85 mm and L = 65 mm, C_(m) = 200 μm and C = 300 μm has been designed and tested to access the temperature rise at oil bush interface with three grade oils namely Oil 1, Oil 2, and Oil 3 at loads = 200 N, 400 N, and 500 N and speeds = 3000, 3500, 4000 rpm at constant oil supply pressure. The results show that with increase in the load at constant speed and pressure, and with increase in speed at constant load and pressure, the oil film temperature increases in the central plane of both the lobes of the bearing for all the grade oils. The nature of the oil film temperature distribution along the circumference of the journal bearing has been observed very close to the oil film temperature distribution reported in the literature.
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机译：在流体动力轴颈轴承中观察到油膜温度的显着变化。在这里，已经开发出一种轴颈轴承试验台，以测量轴颈轴承三个圆周面上的油膜温度。此外，椭圆轴颈轴承的 D_（Imin）= 65.2 mm， OD = 85 mm和 L = 65 mm， C_（m）= 200μm和 C =已设计并测试了300μm，以在油= 200 N，400 N和500 N且速度= 3000、3500、4000的情况下使用三种等级的油（即油1，油2和油3）访问油衬套界面的温升。恒定供油压力下的rpm。结果表明，对于所有等级的机油，随着在恒定速度和压力下负载的增加以及在恒定负载和压力下转速的增加，油膜温度在轴承两个凸角的中心平面内都升高。已经观察到沿着轴颈轴承的圆周的油膜温度分布的性质非常接近文献中报道的油膜温度分布。
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