Clevite MS-1812A-.50MM Engine Crankshaft Main Bearing Set Oversized

The Clevite MS-1812A-.50MM is a high-performance engine crankshaft main bearing set designed for demanding automotive applications. This oversized bearing set (.50mm) provides precision fit and superior durability for rebuilt or modified engines requiring oversized main bearings.

Key Features:

• TriMetal bearing construction for exceptional strength and durability
• Optimized 180-degree upper shell grooving for efficient oil distribution to connecting rods
• Ungrooved lower shells provide maximum oil film thickness and bearing life
• High crush design ensures positive retention in bearing bores
• Reduced overlay thickness prevents overlay fatigue and hen tracking
• Non-flash plated back for improved seating characteristics
• Engineered for performance and racing applications

Performance Bearing Technology:

This bearing set utilizes advanced grooving technology developed through extensive testing. The 180-degree groove in the upper main shell provides optimal oil supply to connecting rod bearings while maintaining the thickest possible oil film for the crankshaft to ride on. The ungrooved lower shells, which experience higher loads, develop a superior oil film that provides greater safety margin and extended bearing life compared to fully-grooved designs.

Applications:

Ideal for performance builds, racing engines, and rebuilt engines requiring oversized main bearings. The high crush design and hardened construction make this bearing set suitable for medium to high RPM applications where reliability and durability are critical.