Stable guide gear

The utility model relates to the technical field of gear assemblies, in particular to a stable guide gear. According to the technical scheme, the connecting structure comprises a cylindrical main bodysupporting stable connecting column, and a cylindrical center assembling stable connecting hole penetrating through the end face of the rear side of a part is formed in the center of the front face of the main body supporting stable connecting column. The edges of the front end and the rear end of the center assembly stable connecting hole are each provided with an installation guide convenient connecting fillet, and a cylindrical guide conveying main body area is arranged in the middle, in the front-back direction, of the outer cylindrical face of the main body supporting stable connecting column. The front end face and the rear end face of the guide conveying main body area are each provided with a set of symmetrical stable guide matching connecting grooves which are evenly distributedin the circumferential dir