Steering device for flap rudder for aquatic vehicles

摘要

The drive unit (50) has two bearing housings (51,53), a sliding piston (52) and a drive tap (54). The drive unit has two bearings with identical diameters in each case and essentially resembles width and height. The latter bearing is made of a non-metallic material, particularly of plastic or ceramic. An independent claim is also included for drive unit kit for production of drive unit.