Clevite MS-2220H-.026MM High Performance Main Bearing Set

The Clevite MS-2220H-.026MM is a high-performance engine crankshaft main bearing set designed for competition and demanding performance applications. This H-Series bearing features -.026mm undersize dimensions to accommodate reground crankshafts, providing precise fitment and optimal clearances for rebuilt engines.

H-Series Performance Features:

• Medium eccentricity design for optimal contact patterns covering 2/3 to 3/4 of bearing surface
• High crush construction ensures maximum bearing retention under extreme loads
• Hardened steel back with thin overlay for superior strength and fatigue resistance
• Enlarged chamfers provide greater crankshaft fillet clearance for performance applications
• No flash plating for improved bearing seating and bedding-in
• 180-degree upper half grooving optimizes oil film thickness while feeding connecting rod bearings
• Legendary Clevite TriMetal bearing construction for durability and longevity

Engineering Excellence:

Clevite H-Series bearings were developed primarily for NASCAR-type racing but are suitable for all competition engines. The 180-degree groove design in the upper main shell provides the best overall performance by maintaining optimal oil film thickness on the heavily loaded lower bearing while still supplying adequate lubrication to connecting rod bearings. This design prevents the horsepower loss and increased peak oil film pressure associated with full-groove designs.

Application:

H-Series bearings are ideal for engines running in medium to high RPM ranges with performance crankshafts featuring oversize fillets. If you're unsure which performance bearing series to choose, the H-Series is the recommended starting point for most high-performance and racing applications. The medium eccentricity design accommodates most performance crankshaft geometries without creating excessively narrow contact patterns.

This -.026mm undersize set is specifically engineered for crankshafts that have been reground or machined undersize, ensuring proper oil clearances and bearing crush are maintained after crankshaft reconditioning.