ACL Bearings 7M2428HC-STD Race Series Main Bearing Set with Calico Coating - CT-1

The ACL 7M2428HC-STD combines ACL's Race Series lining and overlay metallurgy with Calico's CT-1 coating, engineered specifically for high-performance Nissan RB26DETT engines. This standard size main bearing set delivers the durability and precision required for demanding motorsports applications.

Calico CT-1 Dry Film Lubricant Coating:

• Reduces friction and abrasive wear with dry film lubricant technology
• Provides intermittent dry lubrication unaffected by dust or dirt
• Reduces oil temperatures by 8°C to 11°C (15°F to 20°F)
• Protects against intermediate oil starvation during cold starts and extreme conditions

Race Series Engineering:

• Multi-layered tri-metal copper alloy construction provides high strength and excellent seizure resistance
• Manufactured to exacting tolerances with micron-level machining for precise wall thickness and crush
• Hardened steel backs improve bearing lining support and assist with bearing retention
• Increased eccentricity compensates for bore distortion at high RPM
• Enhanced embeddability, strength and durability for professional engine builds

Specifications:

• Size: Standard (STD)
• Housing diameter: 58.645-58.658mm
• Shaft diameter: 54.951-54.975mm
• Maximum wall at crown: 1.827mm; Overall length: 26.95mm
• OEM Reference: 12207-05U00, 12261-05U00

ACL Race Series bearings are recognized as a premier brand throughout motorsports, used in engines that have set records and won championships from drift racing to NASCAR competitions.