Abstract: A torsional vibration damper, including: a hub supported for rotation around an axis of rotation; a first damper stage including a first damper flange non-rotatably connected to the hub and a first spring engaged with the first damper flange; a second damper stage including a second damper flange and a second spring, radially off-set from the first spring, and engaged with the second damper flange; and a friction control plate non-rotatably connected to the hub, free of contact with the first spring and free of contact with the second spring, and directly engaged with the second damper stage.

Abstract: A clutch pedal arrangement for operating a clutch to provide a variable pedal force transmission ratio. The pedal arrangement includes a pivotally-supported pedal lever that pivots about a pivot axis. An operating member that is in operative engagement with the clutch is connected to the pedal lever for movement along a slotted slide bearing surface carried by the pedal lever to allow radial movement of the operating member relative to the pivot axis. The operating member is guided in and supported by the slide bearing surface of the pedal lever and is movable along at least one curved groove carried by a pedal support member.