Mechanical chain tensioner basic body

A mechanical chain tensioner comprising a molded part including fastening openings and abutments, as a basic body on which a tension bracket is mounted on the abutments, the basic body being an integral molded part of fiber-reinforced, injection-moldable plastic, the basic body having an integrally molded pivot bearing defining a tension bracket abutment of said basic body, the pivot bearing being arranged on a transverse wall which connects transverse projections, and the pivot bearing has a bearing block which rises upwards from the transverse wall and has coaxial bearing pins at both sides, in that a bearing eye, is recessed in a manner of a fork, and attached with the tension bracket, said tension bracket comprising bearing holes for the bearing pins, and insertion slots which are open outwards towards the bearing holes formed in the bearing eye for the bearing pins, the bearing eye being clipped to, and centered in the axial direction of the bearing pins on the bearing block, which engages into the bearing eye.