FIELD: machine building.
SUBSTANCE: crank shaft is intended for use in crank-and-rod mechanisms of piston compressors. The crank shaft comprises main bearing journal (2), connecting rod journal (4) and the web (3), which contain axial branches (13, 14) of the branched oil passage. On the web (3) the balancer is mounted, and the axial branches (13, 14) of adjacent main bearing (2) and connecting rod (4) journals are connected by the radial branch (16), made in the web (3). The output hole (17) of the radial branch (16) is located on the mounting surface of the web (3) under the balancer.
EFFECT: elimination of self-unfastening of the plug from the radial branch of the oil passage made in the web of the crank shaft, simplification of drilling and cleaning of the named radial branch.
13 cl, 4 dwg
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