Add to ORKGThis bachelor’s thesis deals with the calculation and construction proposal of self-locking differential tackle with lifting capacity of 600 kg and lift of 3.7 m. After a short division of tackles according to various criteria and their description is followed by a more detailed description of the chosen construction of the differential tackle. The thesis includes the calculation of the sprockets according to the relevant norm, the choice of the chain, bearing selection, assessment limits and safety self-locking and important strength calculations taking into account the manual manipulation. There is the drawing documentation according to the topic of the bachelor’s thesis