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The paper describes the results of design and production of new generation valve drives for oil and gas machinery. The drives are based on the use of pan precess gear. The gear has a high performance coefficient (88…90%), smooth operation, low starting torque and ability to remain functioning even under severe conditions of operation. Basic dependencies for geometric calculation of the gear are showed. The problem of synthesizing geometric parameters of the gear as well as calculating parameters and settings of tools (circular cutting heads) and gear-cutting machines has been solved. The results of synthesizing the gear geometric parameters according to the size and shape of the contact pattern are showed. Methods of calculating pan precess gear loading have been developed considering multiple contact of teeth in meshing. The manufactured drives for valves and reduction valves used in progressive cavity pumps for heavy oil production are presented.

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