ACL Bearings 5M8511P-.75 Main Bearing Set Undersize - 75mm

The ACL Bearings 5M8511P-.75 is a precision-engineered main bearing set designed for engines with crankshaft journals that have been machined .75mm (.030 inch) undersize. This Race Series main bearing set delivers the performance and durability required for high-performance and racing applications.

Key Features:

• Tri-metal construction for superior strength and durability
• .75mm (.030 inch) undersize for machined crankshaft journals
• High-strength overlay plate with reduced thickness for improved fatigue resistance
• Hardened steel backing for enhanced bearing support and retention
• Increased crush design for improved bearing retention in the housing
• Tight wall tolerances for consistent oil clearances
• Engineered to maintain stable oil film under extreme operating conditions
• Optimized for high RPM performance applications

ACL Race Series bearings are manufactured in Tasmania, Australia, with over 70 years of precision bearing engineering expertise. These bearings feature advanced metallurgy and design specifically developed to handle the increased loads, temperatures, and RPM ranges found in performance and racing engines. The undersize specification allows proper fitment and oil clearance when crankshaft journals have been ground during rebuilding or performance modifications.