Gearwheel transmission having a first and a second helically toothed gear (1, 2) which are in engagement with one another for transmission of torques in different directions for traction and overrun torques, wherein a driving and a driven gear can be defined, and the toothings of the first and second gear (1, 2) each have a root circle diameter and a pitch circle diameter and the first and second gear (1, 2) each have corresponding ring-shaped thrust collars (4, 5) for supporting oppositely oriented axial forces due to traction and overrun torques, and corresponding thrust collars (4, 5) each form a raceway (8, 9; 10, 11) with a region of overlap, such that a first and a second raceway (8, 9) for traction torques and a third and a fourth raceway (10, 11) for overrun torques are formed, and each region of overlap has a contact surface or a contact point (14, 15), and each contact point (14, 15) lies on a contact circle diameter (16, 17), and the contact surfaces or contact points for traction torques and the contact services or contact points for overrun torques are arranged spatially separated from one another, such that first and second contact surfaces or contact points are formed and the first and second contact surfaces or contact points (14, 15) for traction and overrun torques are arranged radially offset relative to one another, characterized in that a thrust collar (4, 5) with a first and a second raceway (8, 9) is formed, and in that the first contact surface or the first contact point for traction torques is provided close to the pitch circle diameter and the second contact surface or the second contact point for overrun torques is provided below the root circle diameter of a toothing. wherein a driving and a driven gear can be defined, and the toothings of the first and second gear (1, 2) each have a root circle diameter and a pitch circle diameter and the first and second gear (1, 2) each have corresponding ring-shaped thrust collars (4, 5) for supporting oppositely oriented axial forces due to traction and overrun torques, and corresponding thrust collars (4, 5) each form a raceway (8, 9; 10, 11) with a region of overlap, such that a first and a second raceway (8, 9) for traction torques and a third and a fourth raceway (10, 11) for overrun torques are formed, and each region of overlap has a contact surface or a contact point (14, 15), and each contact point (14, 15) lies on a contact circle diameter (16, 17), and the contact surfaces or contact points for traction torques and the contact services or contact points for overrun torques are arranged spatially separated from one another, such that first and second contact surfaces or contact points are formed and the first and second contact surfaces or contact points (14, 15) for traction and overrun torques are arranged radially offset relative to one another, characterized in that a thrust collar (4, 5) with a first and a second raceway (8, 9) is formed, and in that the first contact surface or the first contact point for traction torques is provided close to the pitch circle diameter and the second contact surface or the second contact point for overrun torques is provided below the root circle diameter of a toothing.