Clevite MS-829A Engine Crankshaft Main Bearing Set

The Clevite MS-829A is a precision-engineered crankshaft main bearing set designed for automotive engine rebuilds and performance applications. This bearing set features Clevite's proven TriMetal construction, delivering exceptional durability and load-bearing capacity for demanding engine conditions.

Key Features:

• TriMetal bearing construction for superior strength and wear resistance
• Optimized 180-degree upper shell grooving for efficient oil delivery to connecting rods
• Ungrooved lower shells for maximum oil film thickness and bearing life
• Precision-manufactured to OEM specifications for proper fit and clearance
• Lead-tin-copper overlay provides excellent conformability and wear resistance
• Steel backing for dimensional stability under high loads

Clevite main bearing sets are engineered with advanced bearing geometry that maximizes the oil film between the crankshaft and bearing surface. The 180-degree groove design in the upper shell ensures adequate oil supply to the connecting rod bearings while the ungrooved lower shells maintain optimal load-carrying capacity in the high-stress zones. This design provides the best balance of lubrication, load distribution, and bearing longevity for street and performance engines.

Each bearing set includes upper and lower main shells with proper crush specifications for secure retention in the engine block. The bearings feature chamfered edges for crankshaft fillet clearance and are manufactured without flash plating to ensure proper seating during installation.