3044C Industrial Engine and Engines for Caterpillar Built Machines Caterpillar


Connecting Rod Bearing Journal

Usage:

3044C 344

Table 1
Diameter of Crankshaft Journal (Bearing Surface) For Connecting Rod Bearings    
Original Size Journal (1)    
57.955 to 57.970 mm (2.2817 to 2.2823 inch)    
Undersize Journal

0.25 mm (0.010 inch)    

57.705 to 57.720 mm (2.2718 to 2.2724 inch)    
Undersize Journal

0.50 mm (0.020 inch)    

57.455 to 57.470 mm (2.2620 to 2.2626 inch)    
Undersize Journal

0.75 mm (0.030 inch)    

57.205 to 57.220 mm (2.2522 to 2.2528 inch)    
( 1 ) Regrind the connecting rod bearing journals to the next undersize dimension if the repair limit of 57.800 mm (2.2756 inch) is exceeded.

The clearance between a new connecting rod bearing and a new connecting rod bearing journal is the following value. ... 0.030 to 0.090 mm (0.0012 to 0.0035 inch)

Service limit for clearance between a connecting rod bearing and a connecting rod bearing journal ... 0.200 mm (0.0079 inch)

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