•  A five axle-hole, 8 counter weight steel crankshaft has been adopted.

•  An oil line for supplying oil to each journal is provided in the crankshaft. Crank pins and fillets on both sides of the journal are rolled to bear heavy loads.

•  Upper and lower main bearings are made of aluminum alloy and thrust bearings are used at the No.3 journal. The upper main bearing has oil grooves and oil holes.