Abstract
Multilobed journal bearings with the lobes of small angular length are often applied in the bearing systems of grinding machine spindles, which is the most important assembly in the grinding machine. The safe operations of such bearings at proper oil film temperature can be assured by the knowledge of thermal state of bearing and its maximum temperature. This paper presents the results of the calculations of some static characteristics of a 4-lobe bearing with the lobes of small angular length and particularly its maximum oil film temperature. The oil film pressure, temperature, and viscosity fields were obtained by an iterative solution of the Reynolds', energy, and viscosity equations. Adiabatic, laminar oil film and the static equilibrium position of journal were assumed.
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