<p>A clamping disk (1) for the non-positive connection of components in a cam adjusting system, a cam adjusting system (15) having a clamping disk (1) and a method for checking the mounting of the clamping disk (1) are provided. The clamping disk (1) has an essentially circular base body (2) which has at least one friction surface for a contact partner. The base body (2) is axially penetrated by a material recess (10). The mounting of the clamping disk (1) can be controlled in a simple manner by distance measuring.</p>
