Vacuum system with a device for movement transmission, torque transmission, force transmission and/or movement enablement, in particular for forming a gear and/or guidance mechanism, with: - at least one notch-engagement part mechanism which is formed by at least one notch and at least one engagement part , wherein, - in addition, at least two contact surfaces (F1, F2) are formed and at least one contact surface (F1) is configured to roll along the other contact surface (F2), characterised in that - on one contact surface (F2), at least one side portion (SF) is provided for lateral guidance of at least one engagement part and the lateral guidance takes place by means of at least one temporary discrete operative contact between the side portion (SF) and the at least one engagement part , and wherein - a functional part (FT) which is movable by means of the at least two contact surfaces (F1, F2) and the at least one notch-engagement part mechanism so that it can be brought from a starting position into a target position and vice versa, wherein the functional part (FT) comprises a closure apparatus for opening and closing an opening (Ö) or a workpiece transfer apparatus for transferring workpieces, and - a motor-drivable operative means (AM) which is configured to generate a pressure between the at least two contact surfaces (F1, F2) and to move the functional part (FT), and wherein - the pressure is generated from outside through a chamber wall by means of a remotely-acting force, and the functional part (FT) is moved from outside through the chamber wall by means of a remotely-acting force, and wherein - the device is arranged within a chamber, with the exception of the operative means (AM), which is arranged outside the chamber in order to act by means of a remotely-acting force through the chamber wall (KW) into the chamber. - at least one notch-engagement part mechanism which is formed by at least one notch and at least one engagement part , wherein, - in addition, at least two contact surfaces (F1, F2) are formed and at least one contact surface (F1) is configured to roll along the other contact surface (F2), characterised in that - on one contact surface (F2), at least one side portion (SF) is provided for lateral guidance of at least one engagement part and the lateral guidance takes place by means of at least one temporary discrete operative contact between the side portion (SF) and the at least one engagement part , and wherein - a functional part (FT) which is movable by means of the at least two contact surfaces (F1, F2) and the at least one notch-engagement part mechanism so that it can be brought from a starting position into a target position and vice versa, wherein the functional part (FT) comprises a closure apparatus for opening and closing an opening (Ö) or a workpiece transfer apparatus for transferring workpieces, and - a motor-drivable operative means (AM) which is configured to generate a pressure between the at least two contact surfaces (F1, F2) and to move the functional part (FT), and wherein - the pressure is generated from outside through a chamber wall by means of a remotely-acting force, and the functional part (FT) is moved from outside through the chamber wall by means of a remotely-acting force, and wherein - the device is arranged within a chamber, with the exception of the operative means (AM), which is arranged outside the chamber in order to act by means of a remotely-acting force through the chamber wall (KW) into the chamber. <EOS>