Invariancy of vector models in modelling tooth gearings

Bases of a method of mathematical modelling are resulted, statement of a problem of necessity of modelling tooth pumps is made, the analysis of possible construction of the vector model describing a surface of a tooth, the variant of construction of vector models with use of "intermediate" arguments of model is chosen. The given research proves a technique of modelling of tooth gearings on the basis of a method of mathematical modelling the vector closed contours and shows the some advantages of similar modelling.