CIP Composites are thermal insulators. Under normal circumstances frictional heat is removed via the mating metal surface. The removal of frictional heat may be improved, particularly in dry running applications, by using the housing for additional heat dissipation. The wall thickness of bearings should be kept to a minimum in order to improve heat conduction. However, in cases where shafts or housings are conducting heat to the bearing assembly, a lubricant may be necessary to aid in the removal of heat. Although thermal expansion of CIP Composites is greater than that of most metal alloy bearings; it is consistent, predictable and less than many plastics. Expansion must be taken into account for applications where there will be a temperature change greater than 60°F (15°C), our sales department will provide recommended running clearance.