Caterpillar works with bearing suppliers to develop specific bearings for Cat machine applications, such as debris resistant and textured bearings for off-highway trucks. The bearings from Caterpillar are designed to assure proper alignment and protect mating parts like gears, shafts and carriers. Typically, Caterpillar bearing suppliers do not offer bearings with special features through their traditional aftermarket distribution.

Caterpillar uses and matches a variety of friction materials based on application to meet customer needs and regulatory requirements. As an original equipment manufacturer, Caterpillar friction materials are field tested in the applications they are used to meet regulatory requirements. In addition to the material, Caterpillar develops the correct groove pattern to balance engagement, cooling and durability.