Clevite MS-1432A-10 High Performance Main Bearing Set

The Clevite MS-1432A-10 is a precision-engineered main bearing set designed for high-performance and racing applications. This bearing set features advanced tri-metal construction with optimized grooving geometry to maximize oil film strength while ensuring proper connecting rod lubrication.

Key Features:

• Tri-metal construction for superior strength and durability
• Optimized 180-degree upper shell grooving for ideal oil distribution
• High crush design for maximum bearing retention
• Reduced overlay thickness to prevent fatigue and hen tracking
• Hardened steel backing for added strength and fretting resistance
• Engineered to minimize horsepower loss and peak oil film pressure
• Suitable for competition engines and high-RPM applications

Performance Benefits:

Clevite's engineering research demonstrates that a 180-degree groove in the upper main shell provides optimal bearing performance. This design maintains a thick oil film for the crankshaft to ride on, providing greater safety margins and improved bearing life compared to fully grooved designs. The ungrooved lower bearing shell experiences reduced loads and benefits from uninterrupted oil film development, similar to how a tire hydroplanes on wet pavement.

Application Notes:

This bearing set is ideal for performance engines requiring reliable lubrication under demanding conditions. The design balances the need to supply oil to connecting rods through the upper shell groove while maximizing load capacity in the lower bearing shells. Proper bearing selection should consider crankshaft fillet size, operating RPM range, and desired contact pattern coverage.

Clevite offers multiple bearing series (P, H, K, V, and M) to address specific performance requirements including eccentricity levels, overlay materials, special coatings, and clearance options for select fitting and extreme operating conditions.