Gear pump

The utility model provides a gear pump, which comprises a housing, locate a pair of intermeshing's in the casing gear, wear to locate the gear shaft on each gear, support in the bearing in each gear shaft outside and locate casing opposite ends's protecgulum and hou gai, the inner peripheral surface of this casing forms glasses two poroid accepting holes, this counter gear is acceptd in this two accepting hole, this two gear is the one end of being close to the meshing gradually in two gear teeth strips and has offered a high splenium, being gradually in two gear teeth strips, detached one endis equipped with a low splenium, correspond high -pressure port and low pressure port that high splenium and low splenium were equipped with oily suction on this protecgulum respectively, each bearing outwards is the cylindric that the convergent form extends for the one side by the gear. This gear pump is because each bearing outwards is the convergent form by one side of gear extends, when thegear shaft receives to tak