ACL Bearings 5M2747A-.75 Duraglide Oversized Main Bearing Set +0.75mm

ACL Duraglide main bearing sets feature a tri-metal (copper/lead/alloy) design that provides a combination of high strength and the ability to withstand harsh/demanding operating conditions above casual driving, making them ideal for performance engines and rebuilds. This oversized +0.75mm bearing set is precision-engineered for engines with machined crankshaft journals, allowing engine builders to restore proper bearing clearances after journal reconditioning.

Key Features:

• Designed to withstand higher loads than OEM parts, constructed from 3 layers of hardened steel, copper and nickel
• Trimetal composition substantially lowers friction and reduces operating temperatures while providing superior lubrication
• 3/4 grooved main bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings
• Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films
• Hardened steel backs on all bearings to improve the support of the bearing lining and assist with bearing retention in the housing
• Oversized +0.75mm (approximately +0.030") for machined crankshaft applications

Duraglide bearings consist of four distinct layers: tin over the plate, nickel dam, copper lead intermediate layer, and steel back. This advanced construction delivers exceptional durability and performance for high-performance engine builds and professional rebuilds requiring precise bearing clearances.