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Federal-Mogul Corporation (USA) said it has been successfully moving both its OEM and aftermarket engine parts customers toward widespread adoption of aluminum engine bearing technology. Sealed Power is F-M's engine bearing division; its aluminum bearing product line is marketed as the A Series.
Although aluminum-based engine bearings have been around for decades, Federal-Mogul began its push with a breakthrough aluminum-silicon formulation it introduced in 2002.
Already, new passenger car engines, particularly from Asian and European automakers, are adopting the latest generation of aluminum engine bearings, replacing thinwall main and rod bearings of traditional bimetal and trimetal copper/lead construction.
The silicon component provides the key improvement in surface hardness. The silicon also provides other benefits, such as polishing the crank surface during operation, in a cycle that further reduces wear and heat by reducing friction. On the downside of that hardness is less tolerance ("embeddability") for contaminants.
For bearing manufacturers, the cost of producing aluminum bearings has come down significantly, and they eliminate the environmental issues with the lead content found in traditional bimetal and trimetal bearings.
Because aluminum bearings can tolerate temperatures over 1,000
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| CR8BUUR IKO | 12.7 | 10.2 | |
| CR8BUU IKO | 12.7 | 10.2 |