C4.4 Engines for Caterpillar Built Machines Caterpillar

Connecting Rod Bearing Journal - Spheroidal Graphite Iron Crankshaft

Usage:

CB-54B 463

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Table 1
Item	Quantity	Part	Specification Description
-	-	The original size of the connecting rod bearing journal	67.99 mm (2.6768 inch) to 68.01 mm (2.6776 inch)
-	-	Maximum permissible wear of the connecting rod bearing journals	0.04 mm (0.0016 inch)
-	-	Width of the connecting rod bearing journals	40.305 mm (1.5868 inch) to 40.455 mm (1.5927 inch)
-	-	Surface finish of connecting rod bearing journals and radii	Ra 0.0025 microns (10 µ inch)

The Shell for the Connecting Rod Bearings

Standard Bearing Shells

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Table 2
Item	Quantity	Part	Specification Description
-	All	Thickness at center of the shells	1.995 mm (0.0785 inch) to 2.002 mm (0.0788 inch)
-	All	Width of the connecting rod bearing shells	31.47 mm (1.2390 inch) to 31.73 mm (1.2492 inch)
-	All	Clearance between the bearing shell and the connecting rod bearing journals	0.031 mm (0.0012 inch) to 0.078 mm (0.0031 inch)

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