Ball bearing for a turbocharger

An angular ball bearing for a turbocharger, the bearing being centered on a center axis defining an axial direction, comprising:

• an inner and an outer rolling track;
• balls guided as rolling elements;
• and
• a cage, the cage including a first axial end and a second axial end, the cage including rolling element pockets situated along an outer circumference of the cage, a cage guiding surface running along an inner circumference of the cage from the second axial of the cage to a first transition surface, the cage guiding surface forming a sliding surface pair together with a sliding surface on an outer circumference of an inner ring or rotor shaft containing the inner rolling track, the sliding surface running axially along the inner circumference to a second transition surface;
• the first transition surface and the second transition surface forming a transition area facing away from the rolling element pockets in such a way that—in an axially parallel position of the cage and an outer ring—a distance between the cage guiding surface and the sliding surface forming the sliding surface pair is monotonically increased, the increase growing continuously to define a distance progression.