Clevite Performance Main Bearing Set Undersize

The Clevite Performance Main Bearing Set is an engine crankshaft main bearing set (also called crank main bearings or engine main bearings). It is made for rebuilds and performance builds where the crankshaft journals have been machined undersize. The bearings support the rotating crankshaft and keep a controlled oil film between the journal and the bearing surface.

Key Features:

• Undersize bearing options for use with reground or machined crankshaft journals
• Designed for high-load, high-RPM performance and racing applications
• Multi-layer construction with a steel backing and an engineered bearing lining for strength and fatigue resistance
• Precision-machined for consistent bearing clearances and proper crush and seating
• Oil grooves and bearing geometry that help maintain oil flow and lubrication

Clevite is a long-established engine bearing brand from Mahle, and its bearings are widely used in engine rebuilding and performance work. Pick the bearing size that matches your crankshaft journal dimensions. Use the correct bearing clearances and follow the engine manufacturer's installation and torque specifications.