Abstract: A method and device for measuring the geometric data of a rotationally symmetrical body, such as a disc or a wheel which can be rotated about an axis, uses a measuring frame to secure the wheel. A measuring carrier is arranged in front of the wheel and can be supported on the measuring frame. The measuring carrier can be linearly displaced and pivoted in relation to the measuring frame in three axes (x, y, z) and can rotate about an axis of rotation (x). The measuring carrier is aligned with respect to the wheel such that it is centered in relation to the axis of rotation (x). A distance sensor is used to measure the distance (a) between the measuring carrier and the wheel. The sensor is radially displaceable from the axis of rotation (x) of the measuring carrier. Servo motors displace the measuring carrier with respect to the wheel by linear and/or pivotal movements based on the measurements so that the measuring carrier rotates about its axis of rotation (x) in parallel with the body.