•  Cast iron shaft bearings (5) and counterweights (4) have been adopted to ensure appropriate crank balancing.

•  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.

am3zzn00002147

•  Upper and lower main bearings are made of aluminum alloy. The upper main bearing has oil grooves and oil hole.

•  There is no upper and lower bearings’ positioning tab for installing to the main bearing installation part.

•  Measure and attach the main bearings (upper and lower) so that they are positioned at the center of the main bearing installation part.

am3zzn00004924

•  The main bearing can be selected from three types including the standard, 0.25 mm {0.01 in} over size and 0.50 mm {0.02 in} over size.