Actuating device for a transmission

An actuating device for a transmission, comprising:

• an adjusting element configured to be moved in rotation by way of an actuator, the adjusting element defining a groove having a ramp-shaped contour;
• at least one actuating element arranged on a first axial side of the adjusting element and configured to be displaced in translation as a function of a rotation movement of the adjusting element, a first axial side of the at least one actuating element defining a groove having a ramp-shaped contour, a second axial side of the adjusting element having radially inner and outer annular grooves that extend all around the adjusting element in a circumferential direction;
• first roller bodies arranged between the adjusting element and the at least one actuating element wherein each of the first roller bodies engages in the groove of the adjusting element and in the groove of the actuating element;
• at least two concentric bearing body rings;
• each of the bearing body rings has a plurality of bearing bodies configured and arranged to support the adjusting element on a housing-side base element, the housing-side base element has a surface that faces the second side of the adjusting element and has radially inner and outer annular grooves that extend all around the housing-side base element in a circumferential direction, the adjusting element and the housing-side base element are arranged such that the inner and the outer annular grooves of the adjusting element align with the inner and the outer annular grooves of the housing-side base element, the at least two concentric bearing body rings are arranged between the second side of the adjusting element and the housing-side base element such that the bearing bodies of the bearing body rings engage within the inner and the outer annular grooves of the adjusting element and the inner and the outer annular grooves of the housing-side base element.