Positive-fitting free-wheel unit for coupling and de-coupling of auxiliary drive unit has free wheeling and torque transmission mode whereby positioning of second transmission element deviates from positioning of first transmission element

摘要

The positive-fitting free wheel unit has free wheeling and torque transmission mode in power transmission belt drive unit. The device has a tooth support and two transmission elements (19,21,23). The positioning of the second transmission element deviates from the positioning of the first transmission element over the transmission element support (15) around a stretch, which is unequal to the integral multiple of the tooth-pitch.