Torsion damper disc with springs housed in windows - has guide webs of windows on circular arc circumferentially wider than window opening and forming closed transitional area with end faces.

摘要

The windows (3a-c) comprise on one side end faces for torque transfer and on the other an upper and possibly lower guide web for the springs. The upper guide web (7) is set up on a circular arc section (9) which in the circumferential direction is wider than the window opening (3a,3b,3c). The guide web (7) and end faces (5) form a transition area (11) having a closed continuously aligned contour. Between the main plane and the ends of the circular arc section is a dividing cut (21) whose radially outer cut end lies radially further in than the centre of the extension (25) of the upper guide web in the main plane. USE/ADVANTAGE - Reduced tension between end face and guide web allowing reduction in mass of disc or installation of greater springs.