ABSTRACT
Two rotation vectors-one of which is associated with the work gear and the other with the gear cutting tool-uniquely determine the vector of instant rotation of the gear cutting tool relative to the work gear. The latter makes possible the classification of various types of gear machining meshes (Figure 3.8). The actual configuration of the vector of instant rotation ωpl depends on the rotation vectors ωg and ωc. The angle ∠(ωg, ωc) that is measured between the rotation vectors ωg and ωc along with magnitudes ωg and ωc of the vectors ωg and ωc uniquely determine the angles ∠(ωpl, ωg) and ∠(ωpl, ωc), which the rotation vectors ωg and ωc form with the vector of instant rotation ωpl.
