Clevite MS-1432H High Performance Engine Crankshaft Main Bearing Set

The Clevite MS-1432H is a high-performance crankshaft main bearing set designed for demanding racing and performance engine applications. This H-Series bearing set features advanced engineering optimized for medium to high RPM operation with superior durability and oil film retention.

H-Series Performance Features:

• Medium eccentricity design for optimal bearing contact patterns covering 2/3 to 3/4 of bearing surface
• High crush construction ensures maximum bearing retention under extreme loads
• Hardened steel backing provides exceptional strength and fretting resistance
• Thin overlay thickness prevents overlay fatigue and hen tracking
• Enlarged chamfers accommodate crankshafts with oversize fillets
• No flash plating for improved bearing seating and break-in
• 180-degree upper shell grooving maximizes oil film thickness while providing adequate rod oiling
• Legendary Clevite TriMetal bearing construction for strength and durability

Optimized Groove Design:

This bearing set features the proven 180-degree groove configuration in the upper main shell, which provides the best overall performance for high-output engines. The upper shell groove supplies oil to connecting rod bearings while the ungrooved lower shells maintain maximum oil film thickness in the heavily loaded areas. This design reduces peak oil film pressure, decreases horsepower loss, and extends bearing life compared to full-grooved designs.

Application Guidance:

H-Series bearings are ideal for NASCAR-type racing and all competition engines running in medium to high RPM ranges. Use these bearings with crankshafts that have oversize fillets, or when P-Series bearing contact patterns are too narrow. The H-Series is the recommended starting point for most performance applications due to its versatile design characteristics and proven track record.

Clevite engine bearings are engineered to provide superior protection under the extreme loads and temperatures encountered in high-performance and racing applications. Each bearing set is manufactured to exacting tolerances for consistent quality and reliable performance.