| 摘要 |
Joint section is provided in a connection between a journal section and one of two arms supporting a crankpin and between the crankpin and the other of the arms. In each of the joint sections, a plurality of bolts are arranged along an imaginary circle substantially concentric to the axis of the journal section or crankpin, for fastening together the components. Radius of at least one of the journal section and crankpin is greater than a distance between axis lines of the journal section and crankpin. Blanks of shaft components are worked to provide thereon positioning sections, and the components are provisionally attached together to provide a crankshaft blank. The crankshaft blank is worked and then diassembled to attach thereto float bearings and a connecting rod integrally having a big end. Then, the crankshaft is re-assembled to make a crankshaft assembly.
|
