Threaded drive for linear servo motor of motor vehicle, has threaded nut with metal disk and pull rod that is engaged with nut, where rotatable movement of nut is transformed into linear movement of pull rod

摘要

The drive has a threaded nut (30) with an internal thread and a pull rod (32) with an external thread (34), where the nut and the pull rod are engaged with each other. A rotatable movement of the threaded nut is transformed into a linear movement of the pull rod. The threaded nut has a metal disk and a thread turn of less than 360 degree. The internal thread and external thread are made of metal and are provided with a coating. The coating has a layer that is made of epoxide and has a sliding particle with polytetrafluoroethylene.