As the drilling motor in oil field, the downhole motor has the advantages of high efficiency and low cost in the operation. It is a positive displacement motor(PDM). As drilling fluid is pumped down the drill-string, the fluid flows through the cavities in the power section. The fluid pressure reacts against the lobes of the rotor and the walls of the stator causing the rotor to rotate. Torque is then transmitted through the coupling section, bearing section and down to the drill bit.

The product has the different models of 120-244, and the stabilizer can be changeable.