== Siehe auch ==* Transmission (Maschinenbau)* Riemengetriebe== Literatur ==* "Allgemeine deutsche Real-Encyclopedie für die gebildeten Stände. ###>The length of the belt is the sum of the central length of the system on both sides, half the circumference of both pulleys, and the square of the sum (if crossed) or the difference (if open) of the radii.