Undercarriage component comprising a heat-sensitive electric component

The gear component (1) has a shaft, and electrical component which is arranged proximate to a brake disc. The electrical component comprises shaft-shaped portion and a connecting portion for connecting an electrical cable. The shaft-shaped portion is accommodated in a sleeve-shaped portion of a heat shield. The heat shield is provided with a connecting portion of electrical component associated with a collar-shaped portion which is arranged at preset spacing with the connecting portion.