The aim of this work is related to an analysis of journal bearings lubrication using non-Newtonian fluids which are described by a\r\npower-lawmodel.The performance characteristics of the journal bearings are determined for various values of the non-Newtonian\r\npower-law index ââ?¬Å?nââ?¬Â which is equal to: 0.9, 1, and 1.1. Obtained numerical results show that for the dilatant fluids (n > 1), the\r\nload-carrying capacity, the pressure, the temperature, and the frictional force increased while for the pseudo-plastic fluids (n < 1)\r\nthey decreased. The influence of the thermal effects on these characteristics is important at higher values of the flow behavior index\r\nââ?¬Å?n.ââ?¬Â Obtained results are compared to those obtained by others. Good agreement is observed between the different results.
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