FIELD: measurement technology. SUBSTANCE: gear includes at least one mark on body and fixture with system comprising three test marks as minimum. Measurement space in such gear is located between fixture with system of test marks and plane of roadway. Information on arrangement of test marks in measurement space is stored in data processing unit. Data processing unit establishes geometric parameters of wheel setting and/or positions of axles on basis of information on position of rotation plane of wheel with reference to mobile system of coordinates of traveling vehicle. EFFECT: simplified design of gear. 9 cl, 3 dwg
