Abstract: In order to significantly reduce the weight of a single-piece cam (2) of a built camshaft, the cam (2), seen from the semi-cross-sectional point of view, comprises a T-shaped cross section having a narrow bridge (4) that extends towards the center thereof and a wraparound top (5) which protrudes by approximately the same distance on both sides and has an approximately constant cross section. The inventive cam (2) is preferably produced by hot forging or cold forging a semifinished pipe or round plate. Preferably, a camshaft comprising a shaft and at least one cam (2) is assembled by providing the support axle with an enlargement in the joining area by means of rolls, rollers, or knurls, said enlargement being greater than the inner diameter of the cam (2), and by inserting the cam (2), resulting in a positive and/or non-positive connection between the support axle and the cam (2).

Abstract: A camshaft receives cams and camshaft bearings. The chamshaft is rectified in the zones receiving the camshaft bearings such that the diameter of the shaft in the bearing zones is smaller than the diameter of the shaft in the cam receiving zones. Thus, it is possible to mount the cams simply without damaging the bearing zones when the cams are mounted on the shaft, and to provide an economical manufacturing process.

Abstract: A method and device for suppressing vibrations in a printing press includes placing, on at least one element of the press, a mass that vibrates freely with one degree of freedom, determining the rotational speed of the press and feeding the speed to a control device, and, in the control device, utilizing the rotational speed, determining an actuating variable and feeding the actuating variable to at least one actuator, at least one vibration parameter of the mass being changed in accordance with the rotational speed by the actuator.

Abstract: A method of driving a machine related to printing technology, wherein movable elements forming a kinematic chain are coupled with one another via at least one gear mechanism, includes infeeding torque components by a respective motor of at least one group of two motors, respectively located at least at two elements associated with one another. The torque components are of equal amplitude but have opposite directions of rotation, for suppressing disruptive oscillations at least at the one group of two motors. The amplitude of the torque components is proportional to relative rotation of the two elements associated with one another. Rotary encoders are provided to obtain signals for reproducing rotational positions of the elements.

Abstract: A method and device for suppressing vibrations in a printing press includes placing, on at least one element of the press, a mass that vibrates freely with one degree of freedom, determining the rotational speed of the press and feeding the speed to a control device, and, in the control device, utilizing the rotational speed, determining an actuating variable and feeding the actuating variable to at least one actuator, at least one vibration parameter of the mass being changed in accordance with the rotational speed by the actuator.

Abstract: A method of driving a machine related to printing technology, wherein movable elements forming a kinematic chain are coupled with one another via at least one gear mechanism, includes infeeding torque components by a respective motor of at least one group of two motors, respectively located at least at two elements associated with one another. The torque components are of equal amplitude but have opposite directions of rotation, for suppressing disruptive oscillations at least at the one group of two motors. The amplitude of the torque components is proportional to relative rotation of the two elements associated with one another. Rotary encoders are provided to obtain signals for reproducing rotational positions of the elements.

Abstract: The subject matter of the invention is a method of manufacturing a shift gearwheel (1) with coaxially disposed and axially projecting shift teeth (5), which have an axial undercut. To said end, a shift gearwheel blank (1) having preformed shift teeth (5) and a forming tool (16) having corresponding tooth recesses (18) are brought into engagement and set in gyratory motion relative to one another. Further described are a device for effecting the method and a shift gearwheel (1), which may be manufactured by the method. The latter is notable for the fact that the flanks (23, 24) of the shift teeth (5) upon completion of the manufacturing method are concave so as to produce an undercut.