PLAIN BEARING Russian patent published in 2017 - IPC F16C17/00 F16C33/04 F16C33/26 

FIELD: machine engineering.

SUBSTANCE: invention relates to machine engineering, in particular to the machine parts, and can be used in the supporting shaft- and axle nodes of the mechanisms and machines. A plain bearing contains an antifriction liner in the form of the helical spiral, mounted on the shaft (2) trunnion (1) and installed in the bearing casing (3), made of the circular cross section thread (4), the turns of which are adjacent to one another and densely packed on the trunnion surface ( 1), and the spiral ends are fixed on the trunnion ends (1). The trunnion surface (1) is provided with the ridges (5) filling the gaps between the adjacent spiral turns (4) and the trunnion surface (1). Annular widenings (7), which radius is more than the shaft radius at the radius of the spiral turns(4), are placed at the liner ends on the shaft (2). The widenings (7) adjacent firmly to the end (4) spiral turns overlapping the gaps between these turns and the trunnion surface (1).

EFFECT: invention improves the plain bearing reliability by ensuring the rigidity of its liner.

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