the product design refers to the technical specifications specified in cylindrical gear reducer (JB / T 8853-2001).Its characteristics have many similarities with ZLY cylindrical gear reducer, gear and shaft parts are made of high strength alloy steel.the gear is processed by carburizing, quenching and grinding.the accuracy of gear is  grade 6 in GB 10095-88.Hardness of tooth surface HTC58 ~ 62.the front section of the hollow output shaft is equipped with a large size thrust bearing to bear the axial thrust when the screw is working.the whole machine has the characteristics of small volume, high bearing capacity, stable transmission, low noise and high efficiency.