Installation tool for propeller retainer support and bearing outer ring

The invention discloses an installation tool for a propeller retainer support and a bearing outer ring, and relates to the technical field of propeller installation, the installation tool comprises an installation frame, an expanding assembly and a pressing mechanism; a bearing outer ring is fixedly arranged on the mounting frame; the diameter expanding assembly comprises a driving mechanism and a supporting mechanism, the supporting mechanism is supported on the inner conical surface of the bearing outer ring in the circumferential direction, the driving mechanism is arranged on the mounting frame and connected with the supporting mechanism, and the driving mechanism drives the supporting mechanism to move relative to the bearing outer ring in the axial direction of the bearing outer ring so as to support the bearing outer ring to generate elastic deformation; the diameter of the inner circumference, connected with the retainer support, of the bearing outer ring is increased, and the bearing outer ring can b