ACL Bearings 4B1750-.75 Connecting Rod Bearing Set Undersize - 75mm

ACL Bearings is a premier brand recognized throughout the motorsports world for producing high-quality performance engine bearings. The 4B1750-.75 is a connecting rod bearing set designed for crankshafts that have been ground .75mm (0.030") undersize, allowing proper fitment and oil clearance on reconditioned crankshaft journals.

Key Features:

• Hardened steel backs on all rod bearings to improve support of the bearing lining and assist with bearing retention in the housing
• Tri-metal construction with lead-tin-copper overlay for seizure resistance and low friction
• Elimination of flash plating on bearing backs to improve heat transfer and maximize grip between bearings and housing
• Increased eccentricity to compensate for bore distortion at high RPM and assist in formation of hydrodynamic oil films
• Micron tolerance machining with precision measurement systems delivers consistent accuracy to wall thickness and crush for reliable fit

This complete set includes all bearing halves required for installation. The .75mm undersize specification is designed for crankshafts that have been reground during rebuilding to restore proper journal dimensions and achieve correct oil clearances.