Engines Powertrain
L1001.4_01090
1 Diameter classes of the main journals 2 Diameter classes of the main bearings
• The correct tolerance class for the lower bearing shell of each main bearing can be
determined by the diagram shown below.
L1001.4_01091
1 Diameter class of main journal 4 Black (tolerance class B)
2 Diameter class of main bearing 5 Green (tolerance class C)
3 Blue (tolerance class A)
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