The invention relates to a clamping claw having a securing leg and a clamping leg for securing an object in a first recess of a support, with the clamping claw in the installed state being secured on the support by way of its securing leg by means of a bolt and clamping the object in the recess by means of its clamping leg. 3125p KHz, where p is a power of 2. An intake port sleeve is located at least partially within the intake port. A roller retainer presses the group of plates directly or indirectly by moving in the direction of the axis, bringing the group of plates into a press contact state.