The subject of this final assignment is design of the Arter type CVT. In Arter CVT power is transmitted from input shaft V1 to friction plate T1 which is engaged with rollers T2. The rollers,however, power friction plate T3 which is connected to output shaft V3. Continuous adjustment of gear ratio from i = 1 to i = 10 is achieved by inclining the rollers about their rotation axis which causes contact lines of friction plates T1 and T3 to alter. Detailed configuration of the system is illustrated on images 3 and 4. Rollers are positioned on roller carrier which is connected with belonging shaft V2 by interference fit. Mentioned shaft is inclined with the lever and spindle, altering that way the angle of inclination φ which directly effects gear ratio i. Normal forces between friction elements are ensured with the plate springs mounted on shafts V1 and V3. Spring deflection is achieved during assembly. In this thesis introduction is followed by calculations and design development of CVT. First part of the calculations comprises geometrical analysis of friction plates continuing to definition of loads, later used for calculation of shafts, bearings, springs and other machine elements. Review of this thesis is given in the conclusion. Based on previous calculation, model and technical documentation of the power transmitter are developed in Solidworks® program package and attached to this thesis.