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

The Clevite MS-829HX is a high-performance engine crankshaft main bearing set designed for demanding racing and performance applications. This H-Series bearing set features optimized grooving design and advanced materials engineered to withstand the extreme conditions of competition engines.

H-Series Performance Design:

• Medium eccentricity level for optimal contact patterns covering 2/3 to 3/4 of bearing surface
• High crush design for maximum bearing retention in the housing
• Hardened steel back construction for added strength and fretting resistance
• Thin overlay to prevent overlay fatigue and hen tracking
• Enlarged chamfers provide greater crankshaft fillet clearance
• No flash plating for improved bearing seating characteristics
• Standard 180-degree upper half grooving for optimal oil film development
• HX designation indicates 0.001" extra clearance for standard size shafts

Optimized Grooving Technology:

This bearing set utilizes Clevite's proven 180-degree groove design in the upper main shell, which provides the best overall performance for feeding oil to connecting rod bearings while maintaining maximum oil film thickness. The lower main shells are ungrooved to develop the thickest possible oil film for the crankshaft to ride on, providing greater safety margin and improved bearing life under high-load conditions.

Applications:

Ideal for NASCAR-type racing and all forms of competition engines running in medium to high RPM ranges. Use with crankshafts featuring oversized fillets. The H-Series represents an excellent starting point when selecting performance bearings, offering a balanced combination of eccentricity, oil flow, and durability. The extra clearance design allows for select fitting and accommodates thermal expansion in high-performance applications.

Clevite's legendary TriMetal bearing construction provides the strength and durability required for demanding competition use, with lead-tin-copper overlay offering excellent wear resistance and load-carrying capacity.