YCB30-0.6 stainless steel arc gear pump gear heat treatment has a higher hardness and strength, together with the shaft installed in the exchangeable sleeve operation. The lubrication of all parts in the pump is automatically achieved using the output medium while the pump is in operation. According to the design proposal provided by the utility model, the driving shaft and the driven shaft are mounted on the housing, the gear is mounted on a section of the driving shaft located in the housing, the gear engaged with the gear is arranged on the driven shaft to form a pair of gear pairs, The shell is provided with an inlet and an outlet for materials. The utility model is characterized in that a ceramic plate is arranged on the inner wall of the cavity for accommodating the gear pair in the shell. The device by changing the gear pump structure, to improve the stainless steel arc gear pump acid and abrasion resistance. YCB30-0.6 stainless steel arc gear pump is a gear pump, in particular, is a kind of arc-resistant gear pump function. It is mainly used in small flow, high lift water system, such as drinking water supply system, pressure boiler water supply system, high purity water purification system and pharmaceutical, food, fine chemicals, papermaking and other industries flushing, spraying and other processes. YCB stainless steel arc gear pump mainly gear, shaft, pump, safety valve, shaft seal composed of the end. YCB30-0.6 stainless steel circular gear pump adopts internationally the most advanced pump that continuous contact with a little gear, that is double arc plus sinusoidal compound into a tooth shape, can be completely eliminated involute gear pump. Won the national major scientific and technological achievements project, and won the third prize of progress of science and technology by the State Education Commission. YCB arc pump in the meshing between the two teeth for a little continuous contact, will not produce trapped oil phenomenon, completely solve the involute gear pump oil pump phenomenon led to vibration, noise, bearing load increases and so on. YCB30-0.6 stainless steel arc gear pump with efficiency, low noise, and has good energy-saving effect. This series of gear pump gear, shaft, pump body, pump cover, bearing sleeve, shaft seal and other components. Gear with double arc sinusoidal tooth shape manufacturing. Compared with the involute gear, the most outstanding advantage is that there is no relative sliding of the tooth profile during gear meshing. Therefore, the tooth surface has no wear, smooth operation, no liquid trap phenomenon, low noise, long service life and high efficiency.