Clevite MS-2028A-.50MM High Performance Main Bearing Set .50mm Oversize

The Clevite MS-2028A-.50MM is a high-performance engine crankshaft main bearing set designed for demanding automotive applications. This .50mm oversize bearing set features Clevite's proven TriMetal construction, delivering exceptional durability and performance in competition and high-stress engines.

Advanced Bearing Design:

Clevite main bearings utilize optimized groove configurations to balance oil delivery with maximum load capacity. The upper main shells feature a 180-degree groove that efficiently supplies oil to connecting rod bearings while maintaining superior film strength. The lower shells remain ungrooved, creating a thicker oil film that provides greater safety margins and extended bearing life under heavy loads.

Key Features:

• TriMetal construction with steel back and performance overlay
• Optimized 180-degree upper shell grooving for balanced oil flow
• .50mm oversize for machined crankshafts
• High crush design for maximum bearing retention
• Reduced overlay thickness prevents fatigue and hen tracking
• Enlarged chamfers provide increased crankshaft fillet clearance
• Non-flash plated back ensures proper seating

Performance Benefits:

This bearing set is engineered to develop and maintain a critical oil film that separates the bearing surface from the crankshaft during rotation. The strategic groove design minimizes oil film disruption in loaded areas while ensuring adequate lubrication reaches all engine components. This configuration reduces peak oil film pressure, lowers parasitic horsepower loss, and improves overall bearing performance compared to fully-grooved designs.

Applications:

Ideal for performance rebuilds, racing engines, and applications requiring oversized bearings due to crankshaft machining. Compatible with engines that have been professionally machined to accommodate .50mm oversize bearings. Suitable for medium to high RPM applications where durability and consistent oil delivery are critical.