Rotation transmission device for vehicle air-conditioning unit compressor; has torque-limiting unit to interrupt rotation transmission from pulley to output disc if torque difference exceeds threshold

摘要

The device has a pulley (5) and an output disc (6). A torque-limiting unit interrupts the rotation transmission from the pulley to the output disc if the difference in torque between them exceeds a threshold value. The torque-limiting unit is arranged axially inside a cylindrical wall (11) of the pulley. Preferably, at least one rubber damper (9) is arranged between the pulley and the output disc.