Clamping device for construction unit, particularly for rim of wheel of motor vehicle wheel, has retaining opening, where central cone is provided to uptight retaining opening by fastening bolt

摘要

The clamping device has a retaining opening, where a central cone is provided to uptight the retaining opening by a fastening bolt (6). The central cone (3) is made of single-piece plastic such a polyoxymethylene with high mechanical firmness and rigidity, low friction coefficient and high wearing resistance.