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The given article demonstrates a tooth mesh modification of a surface reducing gear of a rod driven screw pump used for oil production. The Novikov gearing for reducing gear transmission has a set of advantages over the involute gearing being applied at present and is proposed to be used instead. The authors assume that the stated advantages will have a positive impact on motor operation as a whole and will be made use of in oilfield engineering.

Performance analysis of surface reducing gear of rod driven screw pump with involute gearing and Novikov gearing