The ACL Race Series 6B1395H-.025 connecting rod bushes are designed for BMW N52 and N53 2.5- and 3.0-liter inline-6 engines. This 0.025 mm version allows for precise mounting when crankshaft dimensions and the desired oil clearance require this specific dimension.
Developed for high-performance and racing engines, the ACL Race Series range is designed to withstand the extreme stresses encountered in the lower engine assembly. The bearings serve as the interface between the connecting rods and the crankpins, where precise control of operating clearance is essential for maintaining the oil film.
0.025 mm dimension for precise mounting adjustment
Part number 6B1395H-.025 differs from 6B1395H-STD in its specific size of 0.025 mm. It allows the engine builder to select a size suited to the measurements taken during metrological inspection of the crankshaft.
This dimension must be chosen based on actual measurements of the crankshaft journals and the desired oil film clearance. It should not be selected solely based on the engine power or its level of tuning.
ACL Race Series for BMW N52 and N53 Engines
These bearings are designed for 2.5- and 3.0-liter BMW N52 and N53 engines. They can be used during engine tuning or rebuilding when the measurements taken during assembly specifically require the use of the 0.025 mm dimension.
Before mounting, it is essential to check the sizes of the crankshaft, the connecting rod journals, and the oil clearance to confirm that this part number matches the engine’s configuration.
Technical Specifications for ACL Race Series 6B1395H-.025 Main Bearings
Brand: ACL
Range: Race Series
Manufacturer Part Number: 6B1395H-.025
Type: connecting rod bush
Thickness: 0.025 mm
Engine Applications: BMW N52 and N53
Cubic capacity: 2.5 and 3.0 liters
Engine configuration: Cylinders in line, 6-cylinder
Selection: based on crankshaft dimensions and required oil clearance
