YCB arc gear pump is mainly used for various mechanical equipment in the lubricating oil transportation system for conveying a viscosity of 5 × 10-6 ~ 1.5 × 10-3m2 / s (5-1500cSt), temperature below 300 ℃ with lubricating oil. Stainless YCB arc gear pump can transport without lubricating oil, beverage, low corrosive liquids. Equipped with a low copper gear can be transported within the point liquids such as gasoline, benzene. This series of pumps in addition to ordinary motor configuration, it can also be configured according to the user with the specifications of explosion-proof motor. YCB arc pump system can be used in the oil transfer, booster pump; conveyor can be used in the fuel system, pressure, fuel injection pump; in the hydraulic system used to provide hydraulic power to hydraulic pump; In all industrial areas, are available for lubricating oil pump. YCB arc gear pump using the international transfer pumps are considered the most advanced point continuous contact gear, namely double arc sine curve plus composite into the tooth can be completely out of the involute gear pump. Won a major national scientific and technological achievements, and the State Education Commission Science and Technology Progress Award. Arc gear meshing tooth profile in two continuous contact for a bit, does not produce the phenomenon of trapped oil, solve the involute gear pump due to trapped oil phenomenon has led to the pump vibration, noise, and other phenomena bearing the load increases. Therefore arc gear pump with high efficiency, low noise, and has a good energy saving effect. The series arc gear pump gears, shafts, pump, pump cover, bearing housing, shaft seals and other components. Double arc sine curve gear tooth manufacturing. It is compared with involute gear most prominent advantage is the gear meshing process Tooth Surface without sliding, so the tooth surface wear, smooth, no phenomenon due to fluid, low noise, long life, high efficiency. The pump is designed to get rid of the shackles of the traditional, the gear pump in the design, production and use into a new area.