Clevite MS-2022A-20 Engine Crankshaft Main Bearing Set

The Clevite MS-2022A-20 is a precision-engineered crankshaft main bearing set designed for high-performance and racing engine applications. This bearing set features advanced TriMetal construction with optimized grooving and material specifications to maximize oil film thickness, reduce friction, and extend bearing life under demanding conditions.

Key Features:

• TriMetal bearing construction for superior strength and durability
• Optimized 180-degree groove design in upper shells for improved oil film performance
• High crush design for maximum bearing retention
• Reduced overlay thickness to prevent overlay fatigue
• Enlarged chamfers for increased crankshaft fillet clearance
• No flash plating on steel back for improved seating characteristics
• Hardened steel backing for added strength and resistance to fretting

Performance Benefits:

Clevite's advanced bearing grooving technology maximizes the oil film between bearing and shaft surfaces. The 180-degree groove in the upper main shell provides optimal oil delivery to connecting rod bearings while maintaining maximum film thickness in the loaded lower shell. This design reduces peak oil film pressure, minimizes horsepower loss, and provides superior protection compared to full-groove or extended-groove designs.

Applications:

Ideal for performance street engines, NASCAR-type racing applications, and competition engines operating in medium to high RPM ranges. Suitable for engines requiring precise bearing clearances and maximum oil flow to rod bearings. Compatible with crankshafts featuring oversize fillets.

Installation Notes:

Select appropriate bearing series based on your specific application requirements, RPM range, and desired contact pattern. Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface for optimal performance. Extra clearance versions are available for select fitting applications requiring an additional 0.001" clearance.