Clevite MS-771G-10 High Performance Main Bearing Set - Full Groove

The Clevite MS-771G-10 is a high-performance engine crankshaft main bearing set designed for demanding applications. This set features specialized bearing technology that balances oil film strength with proper lubrication delivery to connecting rod bearings.

Main Bearing Grooving Technology:

This bearing set utilizes optimized grooving design to manage oil distribution throughout your engine. Bearings depend on a film of oil to maintain separation from the shaft surface—this oil film is developed by shaft rotation as the crankshaft pulls oil into the loaded area and rides on this film. The primary function of main bearing grooving is to provide oil delivery to the connecting rods, while maintaining the thickest possible oil film for durability and bearing life. Upper main shells feature grooving to supply connecting rods with oil, while lower main shells typically remain ungrooved to maximize oil film thickness and load capacity.

Performance Bearing Series Information:

Clevite offers multiple bearing series designed for specific performance applications. Each series features distinct characteristics in terms of eccentricity, crush, overlay thickness, and grooving patterns. Performance bearings typically include high crush for maximum retention, hardened steel backing for added strength, and reduced overlay thickness to prevent overlay fatigue. Many performance main sets utilize full grooving to maximize oil flow to rod bearings in high-demand applications.

Key Features:

• High-performance main bearing set construction
• Optimized grooving for oil distribution
• Engineered for proper oil film development
• Designed to balance bearing protection with rod bearing lubrication
• TriMetal bearing construction for strength and durability
• Suitable for performance and racing applications

Professional installation is recommended to ensure proper bearing clearances, torque specifications, and oil system function. Proper bearing selection depends on crankshaft specifications, RPM range, and specific application requirements.