Clevite MS-1702A-.25MM High Performance Main Bearing Set Undersized

The Clevite MS-1702A-.25MM is a high-performance engine crankshaft main bearing set designed for demanding automotive applications. This undersized bearing set (-.25MM) is engineered to provide superior durability and oil film strength in performance and racing engines.

Key Features:

• TriMetal bearing construction for exceptional strength and durability
• Optimized 180-degree upper shell oil groove design maximizes oil film thickness while ensuring proper connecting rod lubrication
• High crush design for maximum bearing retention in performance applications
• Reduced overlay thickness prevents overlay fatigue and hen tracking
• Engineered to maintain proper oil film separation between bearing and crankshaft surfaces
• Undersized -.25MM specification for precision crankshaft machining applications

Performance Engineering:

Clevite main bearings utilize advanced bearing groove technology based on extensive performance testing. The 180-degree upper shell groove provides optimal oil delivery to connecting rod bearings while maintaining maximum oil film strength in the loaded lower bearing shell. This design minimizes horsepower loss and peak oil film pressure compared to extended groove or full-grooved designs, resulting in improved bearing life and performance.

Application:

Ideal for performance rebuilds requiring undersized bearings due to crankshaft machining. Compatible with various Clevite performance series depending on your specific engine requirements and RPM range. Suitable for high-performance street engines, racing applications, and competition builds where precision bearing clearances are critical.