FIELD: mechanical engineering.
SUBSTANCE: invention refers to mechanical engineering, particularly to design of thrust bearings operating under modes of boundary or mixed lubrication and implemented in machine-tool manufacture, machine building and other branches of industry. The thrust journal bearing consists of a fixed support and a shaft. End bearing surface of the shaft is made in form of three sections, shape of which is described with equations: 
y = 0, 
where x1 x2 are current coordinates in the system of rectangular coordinates x1O1y1 and x2O2y2; a1 a2, n1 n2 are coefficients characterising tribophysical properties of materials and modes of bearing operation.
EFFECT: increased service life of thrust journal bearing operation.
3 dwg
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