Clevite MS-1454P Engine Crankshaft Main Bearing Set

The Clevite MS-1454P is a high-performance engine crankshaft main bearing set featuring a grooved upper half and plain lower half design. This configuration optimizes oil film thickness and bearing life while providing necessary oil delivery to connecting rod bearings.

Design and Technology:

This bearing set utilizes a 180-degree groove in the upper main shell, which represents the optimal design for performance engines. The upper shell's groove efficiently supplies oil to the connecting rods while maintaining bearing performance. The plain lower half design maximizes oil film thickness in the loaded bearing area, providing a greater safety margin and improved bearing life compared to fully grooved designs. This configuration prevents unnecessary oil film disruption while ensuring adequate lubrication throughout the engine.

Performance Advantages:

• Grooved upper shell provides efficient oil delivery to connecting rod bearings
• Plain lower shell maximizes oil film thickness for superior load-bearing capability
• Optimized groove design reduces horsepower loss and peak oil film pressure
• Advanced bearing geometry prevents overlay fatigue and hen tracking
• High crush design ensures maximum bearing retention
• Reduced overlay thickness for enhanced durability under high loads

P-Series Specifications:

This bearing set belongs to Clevite's P-Series high-performance bearing line. P-Series main bearings feature high eccentricity designs that help narrow bearing contact patterns and increase oil flow to rod bearings. These bearings incorporate high crush for maximum retention, hardened steel backing for added strength, and reduced overlay thickness to prevent fatigue failures. The design is particularly beneficial in applications where rod bearing oil starvation has been an issue.

Applications:

Ideal for performance and racing engines requiring optimized main bearing oiling and durability. This bearing set is particularly suited for applications where increased oil delivery to connecting rod bearings is critical, or where narrower bearing contact patterns are desired to concentrate load-bearing areas.