2.Material and Method
The bearings used in turbine-generator units of hydroelectric power plants are called sliding bearing. Sliding bearings are divided into hydrodynamic and hydrostatic. The hydrodynamic bed oil film is formed spontaneously. On the hydrostatic bed, an oil pump from the outside supports the bearing oil. The bearing shells work together with the bearing pad. The oil film formed between the bearing shell and the bearing pad has very large radial or axial loads depending on the position of the rotating mass. Figure 1 is a schematic view of the bearings in the Francis turbine of a hydropower plant with a vertical shaft.