ACL Bearings Race Series Main Bearing Set with Calico Coating

The ACL Bearings Race Series Main Bearing Set with Calico Coating is a performance crankshaft main bearing (engine bearing) line. It is built for high-load, high-RPM street, track and competition engines. The bearings start as ACL Race Series shells. A Calico CT-1 coating is then applied to help reduce friction and wear.

Key Features:

• Race Series construction: ACL's Race Series lining and overlay metallurgy is designed to handle higher loads and temperatures than standard-duty bearings.
• Calico CT-1 dry film lubricant coating: This thin coating gives intermittent dry lubrication, lowers the coefficient of friction and helps reduce abrasive wear.
• Corrosion and chemical resistance: The coating resists oil and fuel and adds corrosion protection.
• Embedability: The coated surface lets small contaminants embed in the bearing instead of scoring the crankshaft journal.
• Lower friction and drag: Less friction means lower parasitic losses. The coating has also been shown to reduce oil temperatures.
• Hardened steel backing: Race-grade shells are made to hold their position in the bore and resist spinning under heavy load.

These main bearings suit performance engine builds, rebuilds and racing applications. They support the crankshaft and keep a stable oil film between the journal and the block. Choose the correct part number for your engine application and the clearance option you want.