Clevite MS-2262P Engine Crankshaft Main Bearing Set

The Clevite MS-2262P is a high-performance engine crankshaft main bearing set designed for demanding applications. This bearing set features advanced engineering to optimize oil film thickness and bearing longevity in performance and racing engines.

Key Features:

• P-Series high performance bearing design with unique core part number
• Full groove configuration in upper shells for maximum oil flow to connecting rod bearings
• High crush design for maximum bearing retention in the housing
• Reduced overlay thickness to prevent overlay fatigue and hen tracking
• Hardened steel backing for added strength and resistance to fretting
• Optimized eccentricity to narrow bearing contact patterns and increase rod bearing oiling
• TriMetal construction for superior strength and durability

P-Series Applications:

The P-Series bearing line represents Clevite's original high-performance bearing series, engineered specifically for racing and high-RPM applications. These bearings feature the greatest amount of eccentricity among Clevite's performance lines, making them ideal for engines experiencing severe rod bore close-in at extremely high RPMs. The full-grooved main bearing design ensures optimal oil delivery to rod bearings, preventing oil starvation that can cause surface polishing, smearing, and discoloration.

Technical Design:

Main bearing performance is heavily influenced by groove design. This bearing set utilizes proven groove patterns that maintain optimal oil film separation between the bearing surface and crankshaft. The upper shells feature grooving to supply oil to connecting rods, while the design minimizes disruption to the hydrodynamic oil film that bearings depend on for proper operation. This configuration provides an excellent balance between oil supply and bearing load capacity.

Ideal Applications:

Use the MS-2262P when higher bearing eccentricity is desired to control contact patterns and when maximum oil flow to rod bearings is critical. This bearing set is particularly well-suited for high-RPM racing engines where rod bearing oil starvation has been an issue, or where extremely high shaft speeds cause significant rod bore distortion. The P-Series design is proven in competition environments ranging from circle track to drag racing.