Clevite MS-2095P-.25MM Main Bearing Set Performance P-Series

The Clevite MS-2095P-.25MM is a high-performance main bearing set featuring .25mm undersize dimensions for precision engine rebuilds. This P-Series bearing set is specifically engineered for extreme performance applications where maximum oil flow and bearing retention are critical.

P-Series Performance Design:

• Full groove configuration maximizes oil flow to connecting rod bearings
• High crush design ensures maximum bearing retention under severe conditions
• Reduced overlay thickness prevents overlay fatigue and "hen tracking"
• Greater eccentricity narrows bearing contact patterns for improved performance
• Tri-Metal construction provides exceptional strength and durability

Advanced Bearing Technology:

Clevite main bearings utilize proven groove design principles to optimize oil film development. The upper main shells feature a 180-degree groove to supply connecting rods with oil while maintaining maximum oil film thickness. The ungrooved lower shells provide a thicker oil film for the crankshaft to ride on, resulting in greater safety margins and improved bearing life under high-load conditions.

When to Use P-Series Bearings:

P-Series main bearings are ideal for extremely high RPM applications that cause severe rod bore distortion. These bearings are recommended when rod bearing oil starvation is evident, typically indicated by surface polishing, smearing, or discoloration concentrated at the bearing's axial center. The higher eccentricity design helps narrow bearing contact patterns while providing increased oil delivery to rod bearings.

This bearing set represents Clevite's oldest and most proven high-performance bearing series, trusted by engine builders for demanding racing and performance applications where bearing failure is not an option.