Clevite MS-970AL-10 High Performance Main Bearing Set

The Clevite MS-970AL-10 is a high-performance main bearing set engineered for demanding automotive applications. This bearing set features advanced TriMetal construction with optimized grooving design to maximize oil film thickness and bearing life while ensuring proper oil delivery to connecting rod bearings.

Key Features:

• TriMetal bearing construction for superior strength and durability
• Optimized 180-degree upper shell grooving for maximum oil film development
• Ungrooved lower shells provide thicker oil film and improved load capacity
• High crush design for maximum bearing retention
• Reduced overlay thickness to prevent overlay fatigue
• Enlarged chamfers for increased crankshaft fillet clearance
• No flash plating for improved bearing seating

Technical Design:

Clevite's engineering research has proven that a 180-degree groove in the upper main shell provides the best overall bearing performance. The upper shell's oil groove supplies lubrication to connecting rod bearings while the ungrooved lower shell maintains an uninterrupted oil film where loading is greatest. This design maximizes the hydrodynamic oil film that separates the bearing from the crankshaft, significantly improving bearing life and reducing wear.

Application Notes:

This bearing set is ideal for performance and racing applications where maximum bearing durability and optimized oil delivery are critical. The high crush design ensures secure bearing retention under severe operating conditions, while the reduced overlay thickness prevents the surface fatigue patterns common in high-stress applications.

Contact patterns should ideally cover two-thirds to three-quarters of the bearing surface for optimal performance. Enlarged chamfers accommodate crankshafts with oversized fillets commonly found in performance builds.