ACL Race Series LS Main Bearings with Calico Coating

Standard / No

$440.00

ACL Race Series LS Main Bearings with Calico Coating

ACL Bearings

$440.00

Crankshaft Undersize Standard .001" .010"

Extra Oil Clearance No Yes

ACL Race Series Performance Engine Bearings and Calico Coatings have joined forces to deliver the ultimate in engine bearing technology. These coated bearings combine ACL's tough Race Series lining and overlay metallurgy with Calico's renowned CT-1 Dry Film Lubricant coating.

CT-1 is a Dry Film Lubricant coating engineered to reduce friction and abrasive wear. It provides intermittent dry lubrication unaffected by dust or dirt, and is specifically designed to withstand the extreme conditions of today's high-performance engines. Professional engine builders enjoy a higher level of confidence with increased embedability, strength, and durability.

ACL engine bearings have been coated by Calico for individuals for over 15 years, with proven compatibility and an established track record of excellence in the most exacting and extreme performance applications.

Key Advantages

■ Corrosion Protection

■ Increased Lubricity

■ Low Coefficient of Friction

■ Oil & Fuel Resistant

■ Excellent Embedability

■ Reduced Parasitic Losses

Embedability

Excellent embedability characteristics allow debris contaminants to embed in the bearing, avoiding damage to the crank.

Extreme Oil Temps

CT-1 coated bearings have shown a reduction in oil temperatures as much as 8°C–11°C (15°F–20°F), also aiding in preventing viscosity loss due to extreme heat.

Oil Starvation Protection

The dry film lubricant protects against intermediate oil starvation during cold starts and rough terrain conditions where the oil film may be momentarily lost.

Bearing Construction

Layer	Material	Thickness	Function
Coating	Calico CT-1 Dry Film Lubricant	0.006–0.0075mm (0.00025"–0.0003")	Scuff resistant – low friction surface interaction
Overlay	Lead – Tin – Copper	0.013*–0.018mm (0.0005"–0.0007")	Seizure resistant – low friction & deformable
Barrier	Nickel	0.001mm (0.00004")	Separation layer
Lining	Copper – Lead – Tin	0.3mm (0.012")	Fatigue strength – strong yet deformable
Steel	SAE1010 (High Tensile)	Remainder	High strength – supports bearing lining

*Connecting rod bearings only — reduced for increased fatigue resistance.

Coating Process

CT-1 Dry Film Lubricant coating is applied as a spray process. Different surface preparation methods appropriate for the substrates are used prior to the coating process. Coating thickness is varied to suit the application. Typical coating thickness for engine bearings is 0.00025" to 0.00030" (6 to 7.5 microns).