Press for pressed product

The invention relates to a press for a pressed product. A pressing device for driving a fan-shaped gear, deep groove ball bearings and an elastic check ring to be pressed to the pressed product is arranged on a rack. A punching part comprises a punching air cylinder arranged on the upper surface of a top plate; a placing part for successively placing the fan-shaped gear, the deep groove ball bearings and the elastic check ring to be matched with an output shaft of the punching air cylinder to punch downward is arranged on the upper surface of a bottom plate; the placing part comprises a guiding device and a placing barrel which is fixedly arranged on the upper surface of the bottom plate, and the axial direction of the placing barrel extends along the z-axis direction; the guiding device comprises a top section, a middle section and a bottom section which are successively arranged from top to bottom along the axial direction, wherein the top section guides a sleeve hole of a gear shaftto sleeve in, the middle