It is the machine element with a feature to operate in the certain intervals of revolution, which composed of the belt and the moving pulley assembly.

Variators designed for infinitely adjustment of revolutions have a lot of types such variators as hydraulic, electronic, elektromagnetic, frictional without belt, frictional with the belt (mechanical without oil). İ-MAK performs the production of mechanical variators. These variators transmit moment by frictional force under the spring pressure between the belt edge surfaces and the pulley surfaces. Therefore, it is mainly suitable for transmitting the rotations above a certain number of revolutions. Slipping arises from now on and moment cannot be transmitted, in those lower than these revolutions as we may call it as critical number of revolutions. In case of any need for the direct variator, variator with Gearboxes must be used by all means.