Built crankshaft with pressed in crank arms bearing journals

摘要

The present invention relates to a built crankshaft with bearing pin (10), which are designed for mounting the crankshaft in a bearing receptacle or for receiving a connecting rod to the crankshaft, and with crank webs (11), in the receiving openings (12) are introduced, so that in the receiving openings (12) end of the bearing pin (10) formed connecting portions (13) are pressed, wherein the receiving openings (12) have a toothing (14), the inside and substantially parallel to the axis in the receiving openings (12) to an input-side centering (15) of the receiving openings (12) connect, and wherein the connecting portions (13) have a substantially circumferential rolling profile (16) on which by the joining of the connecting portions (13) in the receiving openings (12) by the toothing (14) caused at least partially formed plastic deformation is generated. According to the invention, the material of the crank web (11), at least in the region of the centering shoulder (15), has a strength which is at least 80 N / mm 2 higher than the strength of the material in the rolling profile (16) in the connecting sections (13) of the bearing journals (10).