•  The crankshaft is made of spherical graphite cast iron and each journal fillet is rolled to enhance the rigidity.

•  A full balance type crankshaft with five bearings has been adopted.

•  The main bearing is made of aluminum alloy with an oil groove on the upper end and with no oil groove on the lower end.

•  Thrust force is received by the thrust bearing on the No3. main journal.

•  A plastic region tightening method has been adopted for the cylinder block and main bearing cap component.

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