Twin-flywheel apparatus for transmitting torque in the power train of a motor vehicle

Apparatus for transmitting torque from the engine to the variable-speed transmission of a motor vehicle has a primary flywheel which is connectable to the crankshaft of an engine, a secondary flywheel which is coaxial with and is rotatable relative to the primary flywheel against the opposition of one or more dampers and is connectable to the input shaft of a transmission by the clutch plate of a friction clutch having a cover which is permanently separably affixed to the secondary flywheel. An antifriction bearing between the two flywheels is located at least in part radially inwardly of fasteners which extend through holes in the first flywheel to separably connect the first flywheel to the crankshaft. At least one race of the at least one bearing is or can be integral with one of the flywheels. RUEDA VOLANTE DIVIDIDA COMO LAS QUE SE HAN DADO A CONOCER, POR EJEMPLO, POR LA MEMORIA DE-OS 37 21 705. ESTAS RUEDAS VOLANTES TIENEN UNA PRIMERA MASA VOLANTE QUE SE PUEDE FIJAR AL MOTOR DE COMBUSTION INTERNA Y UNA SEGUNDA MASA VOLANTE QUE SE PUEDE UNIR Y DESUNIR CON LA CAJA DE CAMBIOS, QUE ESTAN ALOJADAS MEDIANTE UN COJINETE Y PUEDEN EFECTUAR UN MOVIMIENTO DE TORSION RELATIVO ENTRE SI.