Clevite MS-2019P High Performance Main Bearing Set

The Clevite MS-2019P is a high-performance main bearing set designed for racing and competition engines. This precision-engineered bearing set delivers superior durability and oil film strength for demanding applications.

Key Features:

• TriMetal construction with hardened steel backing for maximum strength
• Optimized 180-degree upper shell grooving for ideal oil distribution
• High crush design ensures positive retention under extreme conditions
• Reduced overlay thickness prevents overlay fatigue and "hen tracking"
• Ungrooved lower shells maintain thicker oil film for improved bearing life
• Precision-engineered for consistent performance at high RPM

Engineering Design:

Clevite main bearings utilize advanced grooving technology that balances oil delivery to connecting rod bearings while maximizing load-carrying capacity. The upper shell features a 180-degree groove that provides adequate oil supply to the rods while maintaining optimal oil film pressure. Lower shells remain ungrooved to develop the thickest possible oil film, resulting in greater safety margins and extended bearing life under racing conditions.

P-Series Performance Bearings:

This bearing set is part of Clevite's legendary P-Series line, the original high-performance bearing family trusted by engine builders for decades. P-Series main bearings feature full grooving to maximize oil flow to rod bearings, making them ideal for applications where rod bearing oil starvation is a concern. These bearings offer high eccentricity to narrow contact patterns and provide increased oiling capacity.

Applications:

Ideal for racing engines experiencing rod bearing oil starvation, typically indicated by polished and smeared bearing surfaces or discoloration at the bearing's axial center. P-Series mains work best where higher eccentricity is desired to concentrate bearing contact and improve oil delivery throughout the lubrication system.

Clevite bearings are manufactured to exacting OEM specifications and are trusted by professional engine builders and racers worldwide for critical competition applications.