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CRANKSHAFT, MAIN BEARING CONSTRUCTION [AJ]

BME011011301T05
• Cast iron has been adopted on the crankshaft.
• The crankshaft has internal oil passages for supplying oil to each journal.
• The internal surface of the upper main bearing has oil grooves and holes for oil lubrication.
• An integrated thrust bearing has been adopted on the lower main bearing.

1 | Upper main bearing
2 | Upper thrust bearing
3 | 3 holes for supplying engine oil
4 | Crankshaft
5 | Oil line
6 | Lower main bearing (integrated with thrust part)
7 | Crank pin
8 | Oil passage
9 | Lower main bearing