The book gives a brief overview of the main designs of the steering mechanisms. Information on the theory and calculation of steering gears and amplifiers is given, parameters and criteria for their assessment are established. A description of the experimental research equipment is given and the results of tests of steering, steering gears and amplifiers and the results of theoretical studies of structures are given. Based on the studies performed, recommendations are given on the selection of the sizes of the most important parts of the steering mechanisms. The book is intended for engineering and technical workers of the automotive industry and transport.