Engine Specs - S65 Rod Bearings

Rod Journal Dimensions

Crankshaft Rod Journals	Metric Dimensions	SAE (Inch) Dimensions
Rod Journal Dimensions	51.9811mm	2.04650 inch
Rod Journal Variance	51.9786 - 51.9887 mm	2.04640 - 2.04680 inch
Rod Journal Tolerance	-0.0025, +0.0076 mm	-0.00010, +0.00030 inch

Bearings Specification, Dimensions, Clearance

OEM 088/089 Bearings

Production and Composition

BMW "088/089" bearings were the factory production bearings between 2007 to mid-2010. When the EU mandated the removal from lead in automotive bearings, BMW discontinued these bearings.
The composition is a standard babbit lead/copper bearing. They are soft faced, and easy on the crankshaft.

Dimensions

Bearing Dimensions (088/089 Bearings)	Metric Dimensions	SAE (Inch) Dimensions
Nominal Bearing Thickness (Top, Blue)	2.0028 mm	0.07885 inch
Nominal Bearing Thickness (Bottom, Red)	1.9977 mm	0.07865 inch
Bearing Thickness Variance (Top, Blue)	2.0015 - 2.0041 mm	0.07880 - 0.07890 inch
Bearing Thickness Variance (Bottom, Red)	1.9964 - 2.0015 mm	0.07860 - 0.07880 inch
Bearing Tolerance (Top, Blue)	-0.0013 - 0.0013 mm	-0.00005 - +0.00005 inch
Bearing Tolerance (Bottom, Red)	-0.0013 - 0.0038 mm	-0.00005 - +0.00015 inch

Bearing Clearance Specifications

Con Rod Clearance (088/089 Bearings) (1)	Metric Dimensions	SAE (Inch) Dimensions
Rod + Bearing Dimensions	52.0179 mm	2.04795 inch
Rod + Bearing Variance (1)	52.0154 - 52.0192 mm	2.04785 - 2.04800 inch
Nominal Rod Bearing Clearance	0.0368 mm	0.00145 inch
Bearing Clearance Variance (1)	0.0343 - 0.0381 mm	0.00135 - 0.00150 inch
Bearing Clearance Tolerance	-0.0025 - +0.0013 mm	-0.00010 - +0.00005 inch
Bearing Clearance per Journal inch		0.00071 inch/inch
Bearing Clearance per Journal Inch Variance (1)		0.00066 - 0.00073 inch/inch
Bearing Eccentricity	0.0216 mm	0.00085 inch
Bearing Eccentricity Variance	0.0178 - 0.0229 mm	0.00070 - 0.00090 inch
Bearing Eccentricity Tolerance	-0.0038 - +0.0013 mm	-0.00015 - +0.00005 inch