Pressurizing medium-actuated operating device for manual transmission of engine in motor vehicle, has roller bearings with non-round rolling body held in cage, where body is based on basic shape of ball and comprises parallel flat portions

摘要

The device has an operating element fastened to a piston rod comprising a piston that is adjustably supported in a cylinder for forming a pressure chamber subjected to a pressurizing medium by linear roller bearings. Each bearing has a non-round rolling body (1) held in a cage, where the body is based on basic shape of a ball and comprises two parallel flat portions (2), which are pierced perpendicular from a roller axis (3). The piston is arranged between the linear roller bearings, and the element is designed as a shift rocker, selector shaft, actuating rod or shift-fork of a transmission.