Patent ID: 8720639

Claim:
An electric auxiliary power steering system for a vehicle, comprising: a rotating component driven by a servomotor in a frame; and a rolling bearing for axially and radially supporting the component in the frame, the rolling bearing having an inner race and an outer race; and wherein the outer race of the rolling bearing is divided into two race parts along a parting plane extending approximately perpendicular to a longitudinal axis of the rotating component; wherein said race parts are axially spring-loaded against one another, and the ends of the race parts facing one another are aligned at an angle from the radial outer side thereof to the radial inner side, thereof; wherein an element with a conical cross section is disposed between the ends of the race parts, the element having a higher coefficient of thermal expansion than the coefficient of thermal expansion of the outer race or the inner race; and wherein, when heat is introduced, the element expands radially such that the race parts are moved axially toward one another, and such that during cooling, the element shrinks radially and the race parts move apart axially.