FIELD: machine building.
SUBSTANCE: invention refers to transmission mechanisms, and may be used in rail transport facility. The system of transmission mechanism of a rail transport facility with at least one pair of helical gears includes a driving gear and a driven wheel in a meshing spur gears, which are mounted in the gear casing via cylindrical roller bearings. At least one of the spur gears has at least one thrust shoulder with correlated contact area for trapping the axial forces. Each thrust shoulder is formed substantially as a thrust washer with a correlated contact area in a circumferential area of abutment washer, wherein at least a circumferential area of the thrust washer regardless of rotational motion, at least portions of the lubricant are supplied.
EFFECT: invention provides catching of occurring axial forces and sufficient supply of lubricant.
12 cl, 2 dwg
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