Nvestigation of wearability of parts of hydraulic gear pumps hardened by electro- spark method

Bstract. The article presents an advanced technology to increase resource of worn parts of hydraulic gear pumps of NSH-K type by electro-spark machining. Electro-spark machining enables to supply service life of reworked parts at the level of 90-100% of the service life of new parts. The method is recommended for implementation at the various repair and technical enterprises engaged in restoration of parts and repair of agricultural machinery.