The contribution deals with is the material selection for spiroid gear. The combination of the softer material of one wheel with the harder material of the other wheel (or gear worm) is used for the trains of gears. The measurements were executed on the measurement stand comprising the machine aggregate with the spiroid drive. In Stage 1 of measurement, the spiroid gear was made of the steel gear worm and of the bronze wheel, in Stage 2 of measurements, it was made of the steel gear worm and of the plastic wheel. The efficiency was evaluated for various levels of the load moment, lubrication and material type used.

Given contribution deals with a group technology and methods of classification of the components. Author proposed a component base for CNC processing centre EMCO Concept MILL 105, which is a part of manufacturing system iCIM 3000 by FESTO. Designed manufacturability components are coded and classified based on shape similarity.

The contribution deals with experimental determination and mathematical modeling aimed to describe complex machine aggregates working under dynamic conditions. Measured parameters allowed to deduce the generalized Kloss characteristics for nominal operational speeds of 1,450 min-1, 1 000 min-1 and 720 min-1 under the sinusoidal excitation. The steady-state motion is conveniently reinterpreted as an ellipse centered at the working point. Working point is given as the intersection of moment characteristics of the asynchronous motor with the loading characteristics of DC motor with separate excitation. The results of measurements show, that it is necessary to consider the linear dynamic characteristics especially for dynamic response computations near to the resonance.

The paper investigates the issue of the asymetric worms´ profile (Fig. 10) of the spiroid gear comprising the direct line worm surface which occurs by the motion of the constituent direct line u upon the helix regarding the steady-state coordinate system 0 (x,y,z). There are described the characteristic attributes of spiroid gears in the article. Some kinematical inaccuracies caused by mistakes in gearing assembly are analyzed there. A testing stand is supposed to carry out an experimental research of inaccuracies influence on smooth run of machine aggregate.

This paper deals with the use of the numerical computer oriented method for the analysis and verification of the design of workpiece clamping. The inaccuracies of the positioning in clamping locating points were simulated using the FEM software ANSYS. The influence of inaccuracies in the positions of contact locating points on the displacements of the workpiece characteristic points and their position in clamped removable jaws was examined. The reaction forces in the contact locating points were also computed and analyzed.