The gasket selection machine is made up of the gasket selection machine of the gearbox and axle, its function is: 1 through one-time and accurate selection of the appropriate bearing seat gasket, it is used to correctly adjust the installation distance of the main driven gear; 2 to ensure the early warning force of the main gear bearing; 3 to fill the bearing seams; so as to reduce the noise and reduce the assembly difficulty of the operators in assembly. and ensure the effective transmission of the main gear and so on. A gearbox and axle gasket selector developed by Hefei Elek instrument and equipment Co., Ltd. includes gasket thickness measuring device, end cover measuring device, operating box, pressure device, rotating device, sensor, frame, pallet, raceway, air generator and jacking mechanism. The timely measurement and installation of the thickness of the gasket is composed of a sensor and a gasket re-inspection unit, the end cover measurement installation is composed of an end cover measurement unit and a sensor, the pressurized installation includes a pre-pressurized cylinder and a pressure sensor, and the rotary installation includes a shaft coupling and a low-speed motor. The tray is provided with a positioning hole and a shell positioning pin, and the lifting mechanism is composed of a pallet limiter, a cylinder and a linear guideway. The gasket selection machine has the advantages of high detection accuracy and easy operation, which improves the efficiency of gasket selection and assembly.