Clevite MS-829H High Performance Engine Crankshaft Main Bearing Set

The Clevite MS-829H is a high-performance engine crankshaft main bearing set designed for demanding racing and performance applications. This H-Series bearing set features optimized engineering for medium to high RPM engines, delivering superior durability and oil film characteristics for competition use.

H-Series Performance Features:

• Medium eccentricity design provides optimal contact patterns covering 2/3 to 3/4 of bearing surface
• High crush construction ensures maximum retention and prevents bearing movement
• Hardened steel back provides exceptional strength and resistance to fretting
• Thin overlay design prevents overlay fatigue and hen tracking
• Enlarged chamfers deliver greater crankshaft fillet clearance for performance cranks
• Non-flash plated for improved bearing seating and break-in characteristics
• Standard 180-degree upper half grooving optimizes oil film thickness while feeding connecting rods

Advanced Bearing Design:

The MS-829H utilizes Clevite's proven TriMetal bearing construction with lead-tin-copper overlay for excellent wear resistance and durability. The 180-degree groove pattern in the upper shell provides the ideal balance between connecting rod oiling and maximum oil film development. The ungrooved lower shells create a thicker hydrodynamic oil film for improved load capacity and bearing life under high-stress conditions.

Applications:

Originally developed for NASCAR competition, H-Series bearings are suitable for all types of performance and racing engines. They are ideal for crankshafts with oversize fillets and engines operating in medium to high RPM ranges. The H-Series represents the best starting point when selecting performance bearings, offering versatility across a wide range of racing applications.

Performance Benefits:

• Reduced peak oil film pressure compared to fully grooved designs
• Lower parasitic horsepower loss versus extended groove patterns
• Improved upper and lower bearing performance through optimized groove placement
• Enhanced bearing life through thicker oil film in loaded areas
• Better resistance to bearing fatigue in high-load racing conditions

The MS-829H bearing set represents decades of Clevite engineering expertise in performance engine bearings, offering racers and engine builders a reliable foundation for high-output engine builds.