In February 2019, by order of the Rector of BNTU, the departments "Theory of Mechanisms and Machines" and "Machine Parts, lifting and transport machines and mechanisms" were merged under the general name "Machine Science and Machine parts". Since April 1, 2022, the department has been headed by Associate Professor Kalina Alla Alexandrovna. The department "Machine Parts, lifting and transport machines and mechanisms" was created simultaneously with the formation of the Belarusian State Polytechnic Institute in 1920. Already in 1921, Professor Barkov's book "Machine Parts" was republished at the Institute. After the end of the Great Patriotic War, when there were no textbooks, manuals, laboratory facilities, traditions of using production experience and factory standards in the educational process were laid. From 1957 to 1961, the area of educational laboratories, where parts and assemblies of various machines were assembled, was about 25 m2, there was its own library. Since 1979, industry research laboratories have been organized: belt drives, self–propelled machine drives, machine drives and mechanisms. The department has been the best general technical department of the university for many years. Over the past 20 years, from 2000 to 2020, the department has won prizes: I - 10 times, II - 6 times, III - 2 times. The most important scientific directions of the department are: creation of new types of gears; development of methods of resource design and testing of load-bearing systems; development of resource-saving technologies for plastic shaping of blanks, etc. For many years, the department has been the head of the Republican Interuniversity Association of Teachers of Applied Mechanics and Machine Parts. In 1968, advanced training courses for teachers of universities of the republic on machine parts and applied mechanics were held on the basis of the department. Branches of the department work at the Minsk Wheel Tractor Plant and at the United Institute of Mechanical Engineering of the National Academy of Sciences of the Republic of Belarus.