Clevite MS-2006A-20 Engine Crankshaft Main Bearing Set

The Clevite MS-2006A-20 is a high-performance engine crankshaft main bearing set engineered for demanding automotive applications. This bearing set utilizes Clevite's legendary TriMetal construction, featuring a hardened steel backing, intermediate copper-lead lining, and a protective overlay designed to provide exceptional durability and wear resistance under extreme operating conditions.

Key Features:

• TriMetal construction with hardened steel back for maximum strength
• Optimized 180-degree upper shell grooving for superior oil film development
• High crush design ensures maximum bearing retention in performance applications
• Reduced overlay thickness prevents overlay fatigue and hen tracking
• Enlarged chamfers provide greater crankshaft fillet clearance
• Non-flash plated backing for improved bearing seat contact

Performance Engineering:

Clevite main bearings are designed with specific grooving patterns to balance oil supply to connecting rod bearings while maintaining optimal oil film thickness. The upper main shells feature a 180-degree groove that supplies oil to the connecting rods, while the ungrooved lower shells develop a thicker oil film for improved load capacity and extended bearing life. This design provides the best overall performance for high-RPM and competition engines.

Application Notes:

This main bearing set is ideal for performance and racing applications where superior bearing retention, durability, and precise oil control are critical. The bearing design allows the crankshaft to ride on a hydrodynamic oil film developed through shaft rotation, providing a safety margin under high loads and extreme operating conditions. Proper bearing selection and installation are essential for optimal engine performance and longevity.