ACL Bearings 5M2747HX-STD High Performance Main Bearing Set with Extra Oil Clearance for Nissan KA24DE

The ACL Bearings 5M2747HX-STD is a high-performance main bearing set engineered specifically for Nissan KA24DE and KA24E inline 4-cylinder engines. This standard size bearing set features the HX designation, which provides an additional 0.001 inch of oil clearance compared to standard H-series bearings, making it ideal for performance builds and high-RPM applications.

Key Features:

• F780 trimetal bearing material construction for superior durability
• Extra oil clearance design (HX) - 0.001" thinner than standard for increased oil flow
• Standard bore size with bearing shaft diameter range of 2.3607-2.3612 inches
• Oil clearance range: 0.002-0.0037 inches vertical clearance
• Includes upper and lower bearing halves for complete main bearing replacement
• High-strength overlay plate with reduced thickness for improved fatigue properties
• Enhanced heat conduction and optimized oil distribution grooves
• 3/4 grooved design to maximize bearing load carrying surface area

ACL Race Series bearings are designed for tuning and engine upgrades where superior bearing capacity and durability are essential. The softer bearing material protects your crankshaft and engine block from excessive wear, while the thin oil film allows the crank to float and reduce friction. Proper main bearing support is crucial to prevent oscillations and crankshaft damage that can occur as engines move out of balance under high-performance conditions.

Ideal for street performance builds, drift applications, drag racing, and high-RPM motorsports use. Always consult with your engine builder or machine shop to verify proper clearances for your specific application.